Question

ALL IN PYTHON PLEASE

Problem 4

Write a program to compute the area of a circle some 'n' times. You must accept n and r from the user. Area is calculated using (22/7.0)*r*r - where r is the radius. Implement using value-returning functions. Hint: create a function to calculate area taking r as a parameter. In the main() function, ask for n and create a loop where you input r and invoke the area function n times.

Rubric:

Correct use of a loop to perform n calculations for the user: 5 pts
Correct use of value-returning functions inside a loop structure: 10 pts

Sample Output:

Enter n: 3

Enter r: 34

Area is: 3633.14285714

Enter r: 23

Area is: 1662.57142857

Enter r: 43

Area is: 5811.1428571

Answer 1

Source Code:

Output:

Code in text format (See above image of code for indentation):

#function definition to calculate area
def area(r):
#calculate area and return area
a=(22/7.0)*r*r
return a

#main function
def main():
#read n value from user
n=int(input("Enter n: "))
#using loop calculate area some n times
for i in range(n):
#read radius r from user
r=float(input("Enter r: "))
#print area by calling function
print("Area is: ",area(r))

#main function call
if __name__=="__main__":
main()