unit 7 lesson 5

Question

surface area of rectangular prisms quick check

use the image to answer the question
5ft., 2ft., 8ft.

what is the surface area of the rectangular prism?

_ ft. ^2

Answer 1

The surface area of the rectangular prism can be found by adding up the areas of all six faces.

To find the surface area, use the formula:

Surface Area = 2lw + 2lh + 2wh

Given:
Length (l) = 5ft
Width (w) = 2ft
Height (h) = 8ft

Substitute the values into the formula:

Surface Area = 2(5)(2) + 2(5)(8) + 2(2)(8)
Surface Area = 20 + 80 + 32
Surface Area = 132

Therefore, the surface area of the rectangular prism is 132 square feet.