unit 7 lesson 5

Question

surface area of rectangular prisms practice

use the image to answer the question
1.5m., 3 m., 4 m.

what is the surface area of the rectangular prism?

_ m ^2

Answer 1

The surface area of a rectangular prism is calculated by adding up the areas of all six faces.

In this case, the rectangular prism has dimensions of 1.5m, 3m, and 4m.

To calculate the surface area:
- The top and bottom faces each have an area of (1.5m * 4m) = 6m^2
- The front and back faces each have an area of (1.5m * 3m) = 4.5m^2
- The left and right side faces each have an area of (3m * 4m) = 12m^2

Adding up all six faces, the total surface area is:
6m^2 + 6m^2 + 4.5m^2 + 4.5m^2 + 12m^2 + 12m^2 = _ m^2

Adding these values together, the total surface area of the rectangular prism is 45m^2.