Chapter 11 - Surface Area and Volume - 11-5 Volumes of Pyramids and Cones - Practice and Problem-Solving Exercises - Page 729: 7

$50 \ m^3$

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: $Volume=\dfrac{1}{2} \times (5)^2 \times (6)\\=\dfrac{1}{2} \times 150\\=50 \ m^3$