7th Grade Challenging Math

-------------------------------------------------------------------------

7-17)   Answer

a) 16, See the picture

                                        
b) 1 cube has surface area of (2 x 2) x 6 = 24 square cm;
4 cubes have surface area of 24 x 16 = 384 square cm

c) 4 x 4 x 8 = 128 cubic cm, (same as the volume of the original prism)