Question

The surface area of a rectangular prism with length l, width w, and height h is 2lw+2wh+2lh. Albert keeps his art supplies in a wooden box shaped like a rectangular prism. He wants to cover the box with silver glitter contact paper. The box has dimensions 12 inches by 10 inches by 6 inches.

How many square inches of contact paper does Albert need to cover the box?

Answer 1

Albert need 504 square inches of contact paper

Explanation:

l = 12 inches ; w = 10 inches ; h = 6 inches

Surface area = 2lw + 2wh + 2lh

= 2*12*10 +2*10*6 + 2*12*6

= 240 + 120 + 144

= 504 square inches