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What is the total surface area of the rectangular prism in square feet?39.25 ft?© 45 ft?B 78.5 ft?DNot here

What is the total surface area of the rectangular prism in square feet?39.25 ft?© 45 ft-example-1
User Zack Bloom
by
6.8k points

1 Answer

2 votes

We have that the total surface area of the rectangular prism is:


\begin{gathered} A_T=\text{ 2(4.5ft }\cdot\text{ 4ft) + 2(4.5 ft }\cdot\text{ 2ft)} \\ =2(18ft^2)+2(9ft^2) \\ =36ft^2+18ft^2 \\ =54ft^2 \end{gathered}

So the answer is 54 ft^2.

User Ojosilva
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