Answer:
<em>584 square inches</em>
Step-by-step explanation:
<em>~ This hint does have meaning. Let us find the area of each surface through multiplication of each figures dimensions ~</em>
1. We should consider the first surface with dimensions 4 by 10 inches. It would be that the area of the surface ⇒ 4 * 10 = 40 inches^2, and the opposite side would be 40 inches as well, knowing that in this rectangular prism opposite surfaces are congruent.
2. Now we can consider a second surface with dimensions 18 by 4 inches. The area of this surface is ⇒ 18 * 4 = 72 inches^2, and the opposite side to this surface is 72 inches as well.
3. We now have the last surface left to consider, having dimensions 10 by 18 inches, area being ⇒ 18 * 10 = 180 inches^2, the opposite side having the same area.
4. So if we are to find the area of the figure, it would be computed through the following expression: 40 * 2 + 72 * 2 + 180 * 2, which can be simplified as such: 80 + 144 + 360 = <em>Answer: 584 square inches</em>
