Question

4.

Mrs. Smith has a cardboard box in the shape of a rectangular prism. She plans to cover it with
paper. The dimensions of the box are 3in by 4in by 6in. What is the minimum amount of paper
needed to completely cover the box?

Answer 1

108 inches²

Explanation:

Rectangular prism = cuboid

To find how much paper is required to cover the box, we need to find the TSA of the cuboid.

TSA of cuboid = 2 [LB + LH + HB] = 2 [ (3×4) + (3×6) + (4×6) ] = 2 [ 12+18+24 ] = 2 × 54 = 108 inches²