#### Answer

$50 \ m^3$

#### Work Step by Step

The volume of a square pyramid is:
$Volume =\dfrac{1}{2} \times b\times h=\dfrac{1}{2} \times S^2 \times h$
Plug the values of $S$ and $h$ into the formula:
$Volume=\dfrac{1}{2} \times (5)^2 \times (6)\\=\dfrac{1}{2} \times 150\\=50 \ m^3$