In this demonstration, a prism, and a square pyramid that have equal bases, and equal heights are filled with water in order to show that the volume of a pyramid is 1/3 the volume of a prism. The video shows you both mathematically, and with a demonstration, this fact.

The volume of a geometric shape is the amount of space the 3D shape occupies. It is always expressed in units cubed.

The **volume formula** for a prism equals the **length** times **width** times the **height** of the prism.

The formula is written **l*w*h**

The** volume formula** for a square pyramid equals 1/3 times length times width times the height of the pyramid.

The formula is written 1/3*l*w*h

According to the formula it takes three pyramids to fill up one prism with an equal height and base.

Watch this demonstration to see what happens when you fill up three pyramids, and pour them into a prism.

Four additional resources for finding the volume of a **prism and pyramid**

Volume of a prism calculator This calculator is accurate,easy to use, and a great way to check your homework.

Volume of a square pyramid calculator Check your homework with this volume calculator. I found this calculator the most helpful compared to other calculators.

Volume of a square pyramid worksheet Great worksheet with several example problems. Includes an answer key so you can check your work.

Volume of a prism worksheet Helpful worksheet for your class, or to just quiz yourself. Includes answers.