"""

Write definitions for these functions:
sphereArea(radius) Returns the surface area of a sphere having the given radius.
sphereVolume(radius) Returns the volume of a sphere having the given radius.
Use your functions to solve Programming Exercise 1 from Chapter 3.

"""

import math

def sphere_Area(radius):

    A = 4 * math.pi * radius ** 2

    return A

def sphere_Volume(radius):

    V = 4/3 * math.pi * radius ** 3

    return V

def main():

     radius = eval(input("Enter the radius: "))

     A = sphere_Area(radius)
     V = sphere_Volume(radius) # Define user defined functions in main

     print("Area of the Sphere is: ",round(A,2))

     print("Volume of the Sphere is: ",round(V,2))


main()