find the surface area of a rectangular prism that has a length of 8 inches

find the surface area of a rectangular prism.
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1 Answer

Total surface area if cross-section area is 21 sq ft and is a square?

Area=42 square feet (two ends) plus ⅔×4√21=42+12.22=54.22 sq feet (8”=⅔ft).
by Top Rated User (1.1m points)

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What is the surface area of the rectangular prism?
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