Question

Which shows the dimensions of two rectangular prisms that have volumes of
72cm3
but different surface areas?

A.
6 cm by 3 cm by 4 cm;
12 cm by 2 cm by 3 cm

B.
2 cm by 4 cm by 9 cm;
9 cm by 4 cm by 2 cm

C.
3 cm by 3 cm by 8 cm;
2 cm by 6 cm by 8 cm

D.
6 cm by 3 cm by 4 cm;
9 cm by 4 cm by 3 cm

Answer 1

The answer is B 
volume of rectangular prism = (area* height )  
so 2 * 4 * 9 = 72 cm3 
   9* 4 * 2 = 72 cm3 
but they have differant surface area