Question

Julie is wrapping presents. One present has

dimensions 10 cm by 10 cm by 10 cm and the other
present has dimensions 70 mm by 90 mm by 150
mm?
Which present will take more wrapping paper?

Answer 1

The present with dimensions 70 mm by 90 mm by 150 mm will take more wrapping paper.

Explanation:

70 mm = 7 cm, 90 mm = 9 cm,

150 mm = 15 cm. From this:

`2(7)(9) + 2(7)(15) + 2(9)(15) = 126 + 210 + 270 = 606`

`6( {10}^(2) ) = 6(100) = 600`