Question

A square pyramid can contain $16m^3$ of water. The height of the pyramid is $3m$. Calculate the length of base of the square pyramid.

• A. $16m$
• B. $12m$
• C. $4m$
• D. $2m$

Answer 1

The correct option is C $4m$

Volume of square pyramid $=16m^3$

$\Rightarrow \frac{1}{3}\times a^2\times h=16m^3\Rightarrow \frac{1}{3}\times a^2\times 3=16\Rightarrow a=\sqrt{16}=4cm$

$\therefore$ Length of base $=4m$