# Volume of a Pyramid - Cavalieri's Principle

- Author:
- Ashley, Brian Sterr

As we just learning, volumes of pyramids with the same base and height are equal.
Move the slider to move the green plane up and down. On the right you can see that the cross-sections of the two pyramids are the same.
Cross Sections are the topic for one of your math notes today, so flip there if you need a definition now.