# file: areaVolume.py
# author: Bob Muller
#
# Two very simple examples showing introducing function definitions
# in Python for CS1101.
#
import math

# area : float -> float
#
def area(radius):
    return math.pi * (radius ** 2.0)

# volume : float * float -> float
#
def volume(radius, height):
    return area(radius) * height