Question

A sealed rectangular box measuring 8*6*18 contains 864 sugar cubes, each measuring 1*1*1. How many sugar cubes are touching the box?

Answer 1

For this you have to work out the total surface area of the box and compare it to the cubes of sugar

Answer 2

8 * 6 * 18 = 864, so the box is full. The question is thus asking for the surface area of the box. The surface area of a rectangular prism is 2ab * 2bc * 2 cb.

Answer 3

ohhh ok i get it. thanks :)