What is the surface area of a rectangular prism that has a 12-in width a 5-in depth and a 3-in height in square inches

Answer 1

To find the surface area of a rectangular prism, we first need to calculate the area of each of the six sides and then add them up.

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

Where:
l = length
w = width
h = height

Given:
w = 12 inches
h = 5 inches
l = 3 inches

Now, plug the values into the formula:
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.