## Unofficialllyy one year ago Pyramid A is a square pyramid with a base side length of 9 inches and a height of 10 inches. Pyramid B has a volume of 1,350 cubic inches. How many times bigger is the volume of pyramid B than pyramid A? Give your answer as a percent. Provide an explanation and proof for your answer to receive full credit.

1. Unofficialllyy

I would use the formula $V=a^2\frac{ h }{ 3 }$ correct?

2. Unofficialllyy

@Vocaloid

3. Vocaloid

yes, if a is the side length of the base

4. Unofficialllyy

I first thought I would have to use $V=\frac{ lwh }{ 3 }$ but that is for a rectangular pyramid, and the formula I put earlier is for a square pyramid, which is what the problem says. That's the only question I had :) Thanks!

5. Vocaloid

both formulas should work, remember that all squares are also rectangles

6. Unofficialllyy

True thanks. :)