Surface Area of Cubes & Rectangular Prisms Quick Check

Question

3 of 53 of 5 Items

Question
length is 12 width is 5 height is 3

Solve for the surface area of the rectangular prism.

(1 point)
Responses

180 square inches
180 square inches

222 square inches
222 square inches

111 square inches
111 square inches

270 square inches

Answer 1

The surface area of the rectangular prism with length 12, width 5, and height 3 is:

2(12 x 5) + 2(12 x 3) + 2(5 x 3)
= 2(60) + 2(36) + 2(15)
= 120 + 72 + 30
= 222 square inches

Answer: 222 square inches