Question

5 in.

3 in.

3 in.

3 in.

3 in.
A chocolate dessert is in the shape of a square pyramid. The pyramid is represented with a net. How many square
inches of icing are needed for the faces of the dessert?

(1 point)

O 69 in.2

O 60 in.2

O 30 in.2

O 39 in.2

Answer 1

Each triangular face has base 3 in and slant height 5 in, so its area = 1/2·3·5 = 7.5 in^2. Four triangles give 4·7.5 = 30 in^2. The square base area = 3^2 = 9 in^2. Total icing = 30 + 9 = 39 in^2.

Answer: 39 in^2.