Question 597808
Square Pyramid:

Volume = (Length*Width*Height)/3


V = (LWH)/3


21 = (LWH)/3


21*3 = LWH


63 = LWH



Since the volume of a rectangular box with length, width and height of L, W, and H is V = LWH, and LWH = 63, this means that the volume of the box is <font color="red">63 cubic centimeters</font>.