If you have a right rectangular prism and it is made from 19 cubic centimetres, what is the surface area?

Question

Right rectangular prism is built from 19 cubic centimetres what would the surface area be?

Answer 1

Since 19 is a prime number, the only possible dimensions for the prism are 19 × 1 × 1; that is , L=19, W = 1, H = 1.  That corresponds to lining the 19 cubes up in one long row.

 

SA = 2(LW + LH + WH) = 2(19 + 19 + 1) = 78 cm²