The surface area of a rectangular prism with length = 7 inches, width = 9 inches and height = 4 inches is 254 inches square.
How to find the surface area of a rectangular prism?
Surface area of a rectangular prism = 2(lw + lh + wh)
where
- l = length
- w = width
- h = height
Therefore,
length = 7 inches
width = 9 inches
height = 4 inches
Therefore,
surface area = 2(63 + 28 + 36)
surface area = 2(127)
surface area = 254 inches²
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