Question

If the length of the cushion measures 14 in, the width measures 7 in, and the height measures 4 in, how much fabric does Greg need to cover the cushion?

Answer 1

364 square inches

Explanation:

Surface area = 2(length)(width) + 2(length)(height) + 2(width)(height)

= 2(14)(7) + 2(14)(4) + 2(7)(4)

= 196 + 112 + 56

= 364 square inches

I multiplied each by two because there are two sides with the same dimensions.