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notka56 [123]
3 years ago
14

What is the surface area of a rectangular prism that has a length of 9 feet, a width of 5 feet, and a height of 7.5 feet?

Mathematics
1 answer:
never [62]3 years ago
5 0
A suitable formula for the surface area of a rectangular prism is ...
  A = 2(LW +H*(L +W))
Filling in the given information, we have
  A = 2((9 ft)*(5 ft) +(7.5 ft)*(9 ft +5 ft))
  A = 2(45 ft² +(7.5 ft)*(14 ft)) = 2(150 ft²)

The surface area of the rectangular prism is 300 ft².
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