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#
Authors:
Y Daniel Lang
Chapter:
To Computers Programs And Python
Exercise:
Programming Excercises
Question:8 | ISBN:978013274719 | Edition: 6

Question

(Area and perimeter of a circle) Write a program that displays the area and perimeter of a circle that has a radius of 5.5 using the following formulas:

                   area = radius * radius * \large \pi

                   perimeter = 2 * radius * \large \pi

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Answer 

# A program that displays the area and perimeter of a circle that has a radius of 5.5
#Calculate the area
print("area=", 5.5 * 5.5 * 3.14)
#Calculate the perimeter
print("perimeter=", 2 * 5.5 * 3.14)

Output:

Python 3.2.1 (default, Jul 10 2011, 21:51:15) [MSC v.1500 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> ================================ RESTART ================================
>>> 
area= 94.985
perimeter= 34.54
>>>

 

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