What is the surface area of a rectangular prism with a 10-in width and 9-in depth and a 3-in height in square inches

Answer 1

To calculate the surface area of a rectangular prism, you need to find the area of each face and then add them together.

The formula for the surface area of a rectangular prism is:
Surface Area = 2lw + 2lh + 2wh

Given:
Width (w) = 10 inches
Depth (l) = 9 inches
Height (h) = 3 inches

Substitute the values into the formula:
Surface Area = 2(10)(9) + 2(10)(3) + 2(9)(3)
Surface Area = 180 + 60 + 54
Surface Area = 294 square inches

Therefore, the surface area of the rectangular prism is 294 square inches.