Volume of Pyramid with Square Base =
..... Area of Base × (Height/3)
1. Calculate length of side
Perimeter of Square: 4S
4S=36
S = 9
2. Calculate Area of Square: S^2
9^2 = 81
3. Calculate Volume: Area of Base × (Height/3)
81(9/3)
81(3)
243
Volume is C. 243 cm^2