Question

The volume of a square based pyramid is 81 cubic meters. What is the volume of the cube with the same side length and height?

Answer 1

\[V_{\text{pyramid}}=\frac{bh}{3}\]
\[b=lw\]
\[\text{for a cube}\qquad l=w=h=s\]
\[V_{\text{square pyramid}}=\frac{s^3}{3}\]
\[V_{\text{cube}}={s^3}\]

Answer 2

what ?