Question

The perimeter of the base of a right square pyramid is 48 cm. The height of the pyramid is 12 cm. What is the volume of the pyramid?

Answer 1

V = (1/3)(b^2)(h) 
b = 48/4 = 12cm 
h = 12cm 
V = (1/3)(144)(12) = 576cm^3 (third choice) 

3) 
V = (pi)(r^2)(h) 
V = (3.14)(64)(8) = 1608cm^3 (not one of the choices but I'm certain that this calculation is correct)