What is the volume of a square pyramid with base edges of 40 cm and a slant height of 25 cm? (1 point 533.3 cm3 8,000 cm3 12,000 cm3 24,000 cm3?

The answer 
the main formula of the volume of a square pyramid is 

V = 1/3 b² h (because the area of the base is A= bxb=b²)
b = 40cm
h= 25 cm 
so the volume is V= 1/3 b² h =1/3 x 40² x 25 = 13333,33 cm^3