def main():
#countrols loop and holds menu choice
choice = 0
while choice != QUIT_CHOICE:
display_menu()
#get users's choice
choice = int(input('Enter your choice: '))
#perform action
if choice == AREA_CIRCLE_CHOICE:
radius = float(input('Enter the circles\'s radius: '))
print('The area is ', circle.area(radius))
elif choice == CIRCUMFRENCE_CIRCLE_CHOICE:
radius = float(input('Enter the circle\'s radius: '))
print('The circumfrence is ', circle.circumfrence(radius))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input('Enter the rectangle\'s width: '))
length = float(input('Enter the rectangle\'s length: '))
print('The area is ', rectangle.area(width, length))
elif choice == PERIMETER_RECTANGLE_CHOICE:
width = float(input('Enter the rectangle\'s width: '))
length = float(input('Enter the rectangle\'s length: '))
print('The area is ', rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print('Exit the program')
else:
print('Error invalid choice')
def main():
choice = 0
while choice != QUIT_CHOICE:
display_menu()
choice = int(input('Wybierz opcję: '))
# Wykonanie wybranej akcji.
if choice == AREA_CIRCLE_CHOICE:
radius = float(input("Podaj promień okręgu: "))
print('Pole powierzchni wynosi', circle.area(radius))
elif choice == CIRCUMFERENCE_CHOICE:
radius = float(input("Podaj promień okręgu: "))
print('Obwód wynosi', circle.circumference(radius))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input("Podaj długość prostokąta: "))
length = float(input("Podaj szerokość prostokąta: "))
print('Pole powierzchni wynosi', rectangle.area(width, length))
elif choice == PERIMETER_RECTANGLE_CHOICE:
width = float(input("Podaj długość prostokąta: "))
length = float(input("Podaj szerokość prostokąta: "))
print('Obwód wynosi', rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print('Zakończenie działania programu...')
else:
print('Błąd: nieprawidłowa opcja.')
def main():
choice = 0
while choice != QUIT_CHOICE:
display_menu()
choice = int(input("Enter your choice: "))
if choice == AREA_CIRCLE:
radius = float(input("Enter the radius of the circle: "))
print("The area of the circle is ", circle.area(radius), "units")
elif choice == CIRCUMFERENCE_CIRCLE:
radius = float(input("Enter the radius of the circle: "))
print("The circumference of the circle is ",
circle.circumference(radius), "units")
elif choice == AREA_RECTANGLE:
length = float(input("Enter the length of the rectangle: "))
width = float(input("Ente the width of the rectangle: "))
print("The area of the rectangle is ",
rectangle.area(length, width), "units")
elif choice == PERIMETER_RECTANGLE:
length = float(input("Enter the length of the rectangle: "))
width = float(input("Ente the width of the rectangle: "))
print("The perimeter of the rectangle is ",
rectangle.perimeter(length, width), "units")
elif choice == QUIT_CHOICE:
print("Exiting the program.....")
else:
print("Error, you selected an invalid choice!!!")
def main():
choice = 0
while choice != QUIT_CHOICE:
display_menu()
choice = int(input('Enter your choice: '))
if choice == AREA_CIRCLE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print('The area is', circle.area(radius))
elif choice == CIRCUMFERENCE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print('The circumference is', \
circle.circumference(radius))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The area is', rectangle.area(width, length))
elif choice == PERIMETER_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The perimeter is', \
rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print('EXITING the program...')
else:
print('Error: invalid selection.')
def main():
choice = 0
while choice != QUIT_CHOICE:
display_menu()
choice = int(input('Wybierz opcje: '))
if choice == AREA_CIRCLE_CHOICE:
promien = float(input('Podaj promien okregu: '))
print('Pole powierzchni wynosci ', circle.area(promien))
elif choice == CIRCUMREFERENCE_CHOICE:
promien = float(input('Podaj promien okregu:'))
print('Pole powierzchni wynosi ', circle.circumference(promien))
elif choice == AREA_RECTANGLE_CHOICE:
dlugosc = float(input('Podaj dlugosc podstawy: '))
szerokosc = float(input('Podaj szerokosc podstawy '))
print('Pole powierzchni prostokata wynosi: ',
rectangle.area(dlugosc, szerokosc))
elif choice == PERIMETER_RECTANGLE_CHOICE:
dlugosc = float(input('Podaj dlugosc podstawy: '))
szerokosc = float(input('Podaj szerokosc podstawy '))
print('Obwod wynosi: ', rectangle.perimeter(dlugosc, szerokosc))
elif choice == QUIT_CHOICE:
break
else:
print('Bledna opcja')
def main():
# Переменная choice управляет циклом
# и содержит вариант выбора пользователя.
choice = 0
while choice != QUIT_CHOICE:
# Показать меню.
display_menu()
# Получить вариант выбора пользователя.
choice = int(input('Выберите вариант: '))
# Выполнить выбранное действие.
if choice == AREA_CIRCLE_CHOICE:
radius = float(input('Введите радиус круга: '))
print('Площадь равна', circle.area(radius))
elif choice == CIRCUMFERENCE_CHOICE:
radius = float(input('Введите радиус круга: '))
print('Длина окружности равна', circle.circumference(radius))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input('Введите ширину прямоугольника: '))
length = float(input("Введите длину прямоугольника: "))
print('Площадь равна', rectangle.area(width, length))
elif choice == PERIMETER_RECTANGLE_CHOICE:
width = float(input('Введите ширину прямоугольника: '))
length = float(input('Введите длину прямоугольника: '))
print('Периметр равен', rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print('Выходим из программы...')
else:
print('Ошибка: недопустимый выбор.')
def main():
# The choice variable controls the loop
# and holds the user's menu choice.
choice = 0
while choice != QUIT_CHOICE:
# display the menu.
display_menu()
# Get the user's choice.
choice = int(input('Enter your choice: '))
# Perform the selected action.
if choice == AREA_CIRCLE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print('The area is', circle.area(radius))
elif choice == CIRCUMFERENCE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print('The circumference is', \
circle.circumference(radius))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The area is', rectangle.area(width, length))
elif choice == PERIMETER_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The perimeter is', \
rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print('Exiting the program...')
else:
print('Error: invalid selection.')
def main():
choice = 0
while choice != QUIT:
displayMenu()
choice = int(input("Enter choice"))
#menu choice
if choice == AREA_CIRCLE:
radius = float(input("Enter the circle's radius "))
print("Area is ", circle.area(radius))
elif choice == CIRCUMFRENCE:
radius = float(input("Enter the circle's radius "))
print("Circumfrence is ", circle.circumfrence(radius))
elif choice == AREA_RECTANGLE:
length = float(input("Enter Length "))
width = float(input("Enter Width "))
print("Area is ", rectangle.area(length, width))
elif choice == PERIMETER_RECTANGLE:
length = float(input("Enter Length "))
width = float(input("Enter Width "))
print("Perimeter is ", rectangle.perimeter(length, width))
elif choice == QUIT:
print("Terminated")
else:
print("Invalid Selection")
exit()
def main():
# The choice variable controls the loop
# and holds the user's menu choice.
choice = 0
while choice != QUIT_CHOICE:
# display the menu.
display_menu()
# Get the user's choice.
choice = int(input('Enter your choice: '))
# Perform the selected action.
if choice == AREA_CIRCLE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print('The area is', circle.area(radius))
elif choice == CIRCUMFERENCE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print('The circumference is', \
circle.circumference(radius))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The area is', rectangle.area(width, length))
elif choice == PERIMETER_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The perimeter is', \
rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print('Exiting the program...')
else:
print('Error: invalid selection.')
def main():
# The choice variable controls the loop
# and holds the user's menu choice.
choice = 0
while not (choice == 5):
# display the menu.
display_menu()
# Get the user's choice.
choice = int(input('Enter your choice: '))
# Perform the selected action.
if choice == 1:
r = float(input("Enter the circle's radius: "))
print('The area is {:.3f}.'.format(circle.area(r)))
elif choice == 2:
radius = float(input("Enter the circle's radius: "))
print('The circumference is {:.3f}'.format(
circle.circumference(radius)))
elif choice == 3:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The area is {:.3f}'.format(rectangle.area(width, length)))
elif choice == 4:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The perimeter is {:.3f}'.format(
rectangle.perimeter(width, length)))
elif choice == 5:
print("Exiting the program...")
else:
print("Error: invalid selection.")
def main():
# the choice variable control the loops
# and holds the user's menu choice
choice=0
while choice!=QUIT_CHOICE:
# display the menu
display_menu()
# get the user's choice.
choice=int(input("Enter your choice: "))
# perform the selected action
if choice==AREA_CIRCLE_CHOICE:
radius=float(input("Enter the circle's radius: "))
print("The area is", circle.area(radius))
elif choice==CIRCUMFERENCE_CHOICE:
radius=float(input("Enter the circle's radius: "))
print("The circumference is", circle.circumference)
elif choice==AREA_RECTANGLE_CHOICE:
width=float(input("Enter the rectangle's width: "))
length=float(input("Enter the rectangle's length: "))
print("The area is", rectangle.area(width,length))
elif choice==PERIMETER_RECTANGLE_CHOICE:
width=float(input("Enter the rectangle's width: "))
length=float(input("Enter the rectangle's length: "))
print("The perimeter is", rectangle.perimeter(width,length))
elif choice==QUIT_CHOICE:
print("Exiting the program...")
else:
print("ERROR: Invalid Selection.")
def main():
''' choice variable controls the loop and the user menu'''
choice = 0
while choice != 5:
# display the menu.
display_menu()
# Get the user's choice.
choice = input ( ' Enter your choice : ' )
# Perform the selected action.
if choice == 1:
radius = input("Enter the circle's radius: " )
print 'The area is', circle.area(radius)
elif choice == 2:
radius = input( "Enter the circle's radius: " )
print ' The circumference is ' , circle.circumference(radius)
elif choice == 3:
width = input("Enter the rectangle's width: " )
length = input("Enter the rectangle's length: " )
print 'The area is', rectangle.area(width, length)
elif choice == 4:
width = input("Enter the rectangle's width: " )
length = input("Enter the rectangle's length: ")
print 'The perimeter is ' , \
rectangle.perimeter(width, length)
elif choice == 5:
print 'Exiting the program . . . '
else:
print 'Error: invalid selection.'
def main():
choise = 0
while choise != QUIT_CHOICE:
display_menu()
#получить ввод пользователя
choise = int(input('Введите вариант: '))
if choise == AREA_CIRCLE_CHOISE:
radius = float(input('Введите радиус круга: '))
print('Площадь окружности равна', circle.area(radius))
elif choise == CIRCUMFERENCE_CHOISE:
radius = float(input('Введите радиус круга: '))
print('Длина окружности равна', circle.circumference(radius))
elif choise == AREA_RECTANGLE_CHOISE:
width = float(input("Введите ширину прямоугольника: "))
length = float(input("Введите длину прямоугольника: "))
print('Площадь равна', rectangle.area(width,length))
elif choise == PERIMETER_RECTANGLE_CHOISE:
width = float(input("Введите ширину прямоугольника: "))
length = float(input("Введите длину прямоугольника: "))
print('Площадь равна', rectangle.perimeter(width, length))
else:
print('Ошибка: недопустимый выбор')
def main():
choice = 0
while choice != QUIT_CHOICE:
display_menu()
choice = int(input("Enter your choice: "))
if choice == AREA_OF_CIRCLE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print("The area is", circle.area_radius(radius))
elif choice == CIRCUMFERENCE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = input("Enter the rectangle's length: ")
print("The circumference is", circle.circumference(width, length))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = input("Enter the rectangle's length: ")
print("The area is", rectangle.area(width, length))
elif choice == PERIMETER_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print("The perimeter is", rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print("Exiting the program...")
else:
print("Error: Invalid selection.")
def main():
# the choice variable controls the loop and holds the users menu choice
choice = 0
while choice != QUIT_CHOICE:
# display the menu
print()
display_menu()
# get the users choice
choice = int(input('Enter your choice: '))
print()
# perform the selected action
if choice == AREA_CIRCLE_CHOICE:
radius = float(input('Enter the circles radius: '))
print('The ares is', circle.area(radius))
elif choice == CIRCUMFERENCE_CHOICE:
radius = float(input('Enter the circles radius: '))
print('The circumference is', circle.circumference(radius))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input('Enter the rectangles width: '))
length = float(input('Enter the rectangles length: '))
print('The ares is', rectangle.area(width, length))
elif choice == PERIMETER_CHOICE:
width = float(input('Enter the rectangles width: '))
length = float(input('Enter the rectangles length: '))
print('The perimeter is', rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print('Exiting the program')
else:
print('Error: invalid selection')
def main():
SELECTION = str(input("Calculate for a (c)ircle or (r)ectangle: "))
if SELECTION == 'c':
radius = int(input("Enter the radius of the circle: "))
print("The area of the circle is: ", circle.area(radius))
print("The circumference of the circle is: ",\
circle.circumference(radius))
if SELECTION == 'r':
width = int(input("Enter the width of the rectangle: "))
length = int(input("Enter the length of the rectangle: "))
print("The area of the rectangle is: ",\
rectangle.area(width=width,length=length))
print("The perimeter of rectangle is: ",\
rectangle.perimeter(width=width,length=length))
def main():
# The choice variable controls the loop
# and hold the user's menu choice
choice = 0
while choice != QUIT_CHOICE:
# display menu
display_menu()
# get user's choice
choice = int(input("Enter your choice: "))
# Perform the calculation selected
if choice == AREA_CIRCLE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print("The area is", circle.area(radius))
elif choice == CIRCUMFERENCE_CHOICE:
radius = float(input("Enter the circle's radius: "))
print("The circumference is", circle.circumference(radius))
elif choice == AREA_RECTANGLE_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's lenght: "))
print("The area is", rectangle.area(width, length))
elif choice == PERIMETER_REC_CHOICE:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's lenght: "))
print("The parimeter is", rectangle.perimeter(width, length))
elif choice == QUIT_CHOICE:
print("Exiting the program.......")
else:
print("Error: invalid entry")
def main():
""" Calculates the area and perimeter of rectangle or circle """
print('This program calculates area and perimeter of a rectangle or circle.')
choice = int(input('Enter 1 for rectangle or 2 for circle: '))
if choice == 1:
length = float(input('Enter length of rectangle: '))
width = float(input('Enter width of rectangle: '))
rect_area = rectangle.area(length, width)
rect_perimeter = rectangle.perimeter(length, width)
print('Area:', rect_area, 'Perimeter:', rect_perimeter)
elif choice == 2:
print('Value of PI in circulations:', circle.PI)
radius = float(input('Enter radius of circle: '))
circle_area = circle.area(radius)
circle_perimeter = circle.circumference(radius)
print('Area:', circle_area, 'Perimeter:', circle_perimeter)
else:
print('Invalid choice')
def main():
# The choice variable controls the loop
# and holds the user's menu choice.
choice = 0
while choice != QUIT_CHOICE:
# displays the menu.
display_menu()
# Get the user's choice.
choice = int(input('Enter your choice:\t'))
# Perform the selected action.
if choice == AREA_CIRCLE_CHOICE:
radius = get_radius()
print(f'The area is {circle.area(radius)}')
elif choice == CIRCUMFERENCE_CHOICE:
radius = get_radius()
print(f'The circumfrence is {circle.circumference(radius)}')
elif choice == AREA_RECTANGLE_CHOICE:
dimensions = get_rectangle_dimensions()
# Calculating the result with the dimensions dictionary
res = rectangle.area(dimensions["width"],dimensions["length"])
print(f'The area is {res}')
elif choice == PERIMETER_RECTANGLE_CHOICE:
dimensions = get_rectangle_dimensions()
# Calculating the result with the dimensions dictionary
res = rectangle.perimeter(dimensions["width"],dimensions["length"])
print(f'The perimeter is {res}')
elif choice == QUIT_CHOICE:
print('Exiting the program...')
else:
print('Error: invalid selection')
def main():
print(
'Program geometria pozwala obliczyć pole i obwód koła, prostokąta i trójkata.'
)
# W pętli while pobierana jest od użytkownika liczba całkowita
# odpowiadająca wybranej czynności (od 1 do 5), a następnie
# w bloku if-elif-else odczytywane są dane i wykonywane obliczenia.
choice = 0 #inicjalizacja zmiennej choice
while choice != QUIT_CHOICE:
display_menu() #wyświetlenie menu
#pobranie wartości od użytkownika
choice = int(input('Wybierz opcję: '))
#wybór czynności
if choice == AREA_CIRCLE_CHOICE: #pole koła
radius = circle.get_radius()
print('Pole koła wynosi', circle.area(radius))
elif choice == CIRCUMFERENCE_CHOICE: #obwód koła
radius = circle.get_radius()
print('Obwód koła wynosi', circle.circumference(radius))
elif choice == AREA_RECTANGLE_CHOICE: #pole prosokąta
(length, width) = rectangle.get_dimensions()
print('Pole prostokąta wynosi', rectangle.area(length, width))
elif choice == PERIMETER_RECTANGLE_CHOICE: #obwód prostokąta
(length, width) = rectangle.get_dimensions()
print('Obwód prostokąta wynosi',
rectangle.perimeter(length, width))
elif choice == AREA_TRIANGLE_CHOICE: #pole trójkąta
(a, b, c) = triangle.get_lengths()
print('Pole trójkąta wynosi', triangle.area(a, b, c))
elif choice == PERIMETER_TRIANGLE_CHOICE: #obwód trójkąta
(a, b, c) = triangle.get_lengths()
print('Obwód trójkąta wynosi', triangle.perimeter(a, b, c))
elif choice == QUIT_CHOICE: #koniec programu
print('Zakończenie działania programu.')
else: #wartość spoza listy
print('Błąd: nieprawidłowa opcja.')
def main():
choice = menu()
if choice == 1:
radius = float(input("Enter the radius of the circle:"))
My_area = circle.area(radius)
print("The area of a circle is:",format(My_area,'.2f'))
elif choice ==2:
radius = float(input("Enter the radius of the circle:"))
My_circum = circle.circum(radius)
print("The circumference of a circle is:",format(My_circum,'.2f'))
elif choice ==3:
length = float(input("Enter the length of the rectangle:"))
width = float(input("Enter the width of the rectangle:"))
My_area = rectangle.area(length,width)
print("The area of the rectangle is:",format(My_area,'.2f'))
elif choice ==4:
length = float(input("Enter the length of the rectangle:"))
width = float(input("Enter the width of the rectangle:"))
My_peri = rectangle.perimeter(length,width)
print("The Perimeter of the rectangle is:",format(My_peri,'.2f'))
else:
print("Quit")
def main():
choice = 0
while choice != quit_choice:
display_menu()
choice = int(int('Enter your choice: ' ))
if choice == area_circle_choice:
radius = float(input"Enter the circle's radius: "))
print('The area is', circle.area(radius))
elif choice == circumference_choice:
radius = float(input("Enter the circle's radius: "))
print('Ther circumference is', circle.circumference(radius))
elif choice == area_rectangle_choice:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectabgle's length: "))
print('The area is', rectangle.area(width,length))
elif choice == perimeter_rectangle_choice:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The perimeter is', rectangle.perimeter(width, length))
elif choice == quit_choice:
print('Exitting the program...')
else :
print('Error: invalid selection.')
def main():
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print("The area is", rectangle.area(width, length))
print("The perimeter is", rectangle.perimeter(width, length))
def handle_area_of_rectangle(AREA_RECTANGLE_CHOICE):
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
return "The area is" + " " + str(rectangle.area(width, length))
#!/usr/bin/env python3
import triangle
import rectangle
import circle
print("Equilateral Triangle, side 4:")
print("a: {0}, p: {1}".format(triangle.area(4,4,4), triangle.perimeter(4,4,4)))
print("Square, side 4:")
print("a: {0}, p: {1}".format(rectangle.area(4,4), rectangle.perimeter(4,4)))
print("Rectange, sides 4, 5:")
print("a: {0}, p: {1}".format(rectangle.area(4,5), rectangle.perimeter(4,5)))
print("Circle, radius 3:")
print("a: {0}, p: {1}".format(circle.area(3), circle.perimeter(3)))
def area_of_rect():
width = float(input("Enter the rectangle's width: "))
length = input("Enter the rectangle's length: ")
print(str.format("The area is {:.2f}", rectangle.area(width, length)))
#!/usr/bin/env python3
import triangle
import rectangle
import circle
print("Equilateral Triangle, side 4:")
print("a: {0}, p: {1}".format(triangle.area(4, 4, 4),
triangle.perimeter(4, 4, 4)))
print("Square, side 4:")
print("a: {0}, p: {1}".format(rectangle.area(4, 4), rectangle.perimeter(4, 4)))
print("Rectange, sides 4, 5:")
print("a: {0}, p: {1}".format(rectangle.area(4, 5), rectangle.perimeter(4, 5)))
print("Circle, radius 3:")
print("a: {0}, p: {1}".format(circle.area(3), circle.perimeter(3)))
def test_area(self):
self.assertEqual(area(4, 5), 20, 'message')
def main():
# The choice variable controls the loop
# and holds the user's menu choice.
choice = 0
while not (choice == 5):
# display the menu.
display_menu()
# Get the user's choice.
choice = int(input('Enter your choice: '))
# Perform the selected action.
if choice == 1:
r = float(input("Enter the circle's radius: "))
print('The area is {:.3f}.'.format(circle.area(r)))
elif choice == 2:
radius = float(input("Enter the circle's radius: "))
print('The circumference is {:.3f}'.\
format(circle.circumference(radius)))
elif choice == 3:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print("The area is {:.3f}".format(rectangle.area(width, length)))
elif choice == 4:
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print('The perimeter is {:.3f}'.\
format(rectangle.perimeter(width, length)))
elif choice == 5:
base = float(input("Enter triangle's base length: "))
height = float(input("Enter the triangle's height: "))
print("The area is: {:.3f}".format(triangle.area(height, base)))
elif choice == 6:
side_a = float(input("Enter the length of the side a: "))
side_b = float(input("Enter the length of the side b: "))
side_c = float(input("Enter the length of the side c: "))
print("The perimeter of the triangle is: {:.3f}".\
format(triangle.perimeter(side_a, side_b, side_c)))
elif choice == 7:
radius = float(input("Enter the sphere's radius: "))
print("The surface area of the sphere is: {:.3f}".\
format(sphere.surface(radius)))
elif choice == 8:
height = float(input("Enter the sphere's height: "))
radius = float(input("Enter the sphere's radius: "))
print("The volume of the sphere is: {:.3f}".\
format(sphere.volume(height,radius)))
elif choice == 9:
height = float(input("Enter the cylinder's height: "))
radius = float(input("Enter the cylinder's radius: "))
print("The surface area of the cylinder is: {:.3f}".\
format(cylinder.surface(height, radius)))
elif choice == 10:
height = float(input("Enter the cylinder's height: "))
radius = float(input("Enter the cylinder's radius: "))
print("The volume of the cylinder is: {:.3f}".\
format(cylinder.volume(height, radius)))
elif choice == 0:
print("Exiting the program...")
else:
print("Error: invalid selection.")
def main():
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
print("The area is", rectangle.area(width, length))
print("The perimeter is", rectangle.perimeter(width, length))
def handle_area_of_rectangle():
width = float(input("Enter the rectangle's width: "))
length = float(input("Enter the rectangle's length: "))
return "The area is" + str(rectangle.area(width, length))
#def displaymenu():
while (ch == 'y'):
print("menu")
print("1.area of the circle")
print("2.circumference of a circle")
print("3.area of a rectngle")
print("4.perimeter of a rectangle")
print("5.quit")
choice = int(input("enter your choice:"))
if (choice == 1):
radius = int(input("enter the circle's radius:"))
print("the area is:", circle.area(radius))
elif (choice == 2):
radius = int(input("enter the circle's radius:"))
print("the circumference is", circle.circumference(radius))
elif (choice == 3):
width = int(input("enter the rectangle's width:"))
length = int(input("enter the rectangle's length:"))
print("the areais", rectangle.area(width, length))
elif (choice == 4):
width = int(input("enter the rectangle's width:"))
length = int(input("enter the rectangle's length:"))
print("the perimeter is", rectangle.perimeter(width, length))
elif (choice == 5):
print("exiting the program..")
else:
print('error : invalid selection')
