6.1.5: Function definition: Volume of a pyramid.
Define a function calc_pyramid_volume with parameters base_length, base_width, and pyramid_height, that returns the volume of a pyramid with a rectangular base.
Sample output with inputs: 4.5 2.1 3.0
Volume for 4.5, 2.1, 3.0 is: 9.45
Relevant geometry equations:
Volume = base area x height x 1/3
Base area = base length x base width.