Solve for the surface area of the rectangular prism

Question

12in
5in
3in

Answer 1

To find the surface area of a rectangular prism, you need to find the area of each of the six faces and then add them up.

The formula for the surface area of a rectangular prism is: 2lw + 2lh + 2wh, where l = length, w = width, and h = height.

Given:
Length (l) = 12 inches
Width (w) = 5 inches
Height (h) = 3 inches

Plugging in the values:
Surface area = 2(12*5) + 2(12*3) + 2(5*3)
Surface area = 2(60) + 2(36) + 2(15)
Surface area = 120 + 72 + 30
Surface area = 222 square inches

Therefore, the surface area of the rectangular prism is 222 square inches.