Question

What is the lateral area of the rectangular prism? Round the answer to the nearest whole number. Assume the 4 m × 8 m rectangles on the left and right are the bases. The diagram is not drawn to scale.

Answer 1

432

Explanation:

432

Answer 2

432 square meters

Explanation:

The lateral area means the area that's not the bases. We have to add up all the lateral faces.

2(big rectangle area) + 2(small rectangle area) = total lateral area

• Big rectangle area: A = lw = 8*18 = 144 square meters
• Small rectangle area: A = lw = 18*4 = 72 square meters

2(144) + 2(72) = total lateral area

total lateral area = 432 square meters