Name _______________________________________________________ Period ________ Date _______________
Red Workbook p. 144
Find the surface area. You may draw a net if it helps you.
1.
2.
Find the surface area of the prism.
3.
4.
5. You bake a 9-inch by 13-inch by 2-inch cake. Your frosting recipe makes enough to cover
250 square inches of cake. Do you have enough frosting? (Assume you do not need to frost
the bottom of the cake.) Explain your reasoning.
6. You buy a ring box as a birthday gift that is in the shape of a triangular prism. What is
the least amount of wrapping paper needed to wrap the box?