Write a function called circle that takes a scalar input r. it needs to return an output called area that is the area of a circle with radius r and a second output, cf that is the circumference of the same circle. you are allowed to use the built-in function pi. in fact, you need to use it to get the value of π as accurately as possible.

Question

Marisol Valentine

Mathematics

4 January, 14:31

Write a function called circle that takes a scalar input r. it needs to return an output called area that is the area of a circle with radius r and a second output, cf that is the circumference of the same circle. you are allowed to use the built-in function pi. in fact, you need to use it to get the value of π as accurately as possible.

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Dominic Robertson · Answer 1

Ok so I'll demonstrate in programming language python.

import math

def circle ():

r = float (input ("Enter r: "))

a = math. pi * r * * 2

print ("Area of circle with r = {0} is {1

}cm2". format (str (r), str (a))

circle ()