What is the surface area of the rectangular prism?

Question

width 10
length 9
height 3

Answer 1

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

The formula to find the surface area of a rectangular prism is:
Surface Area = 2lw + 2lh + 2wh
Where:
l = length
w = width
h = height

Given:
width (w) = 10
length (l) = 9
height (h) = 3

Surface Area = 2(9)(10) + 2(9)(3) + 2(10)(3)
Surface Area = 2(90) + 2(27) + 2(30)
Surface Area = 180 + 54 + 60
Surface Area = 294

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