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Please help me with this problem

Please help me with this problem-example-1

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To find the volume, you multiply the length, width, and height.
3x9x5=135.
135 is the volume.

The formula for the surface area is 2(lw + lh + wh). So all you have to do is plug the values in.

So 2(lw + lh + wh) becomes 2( (3x9) + (3x5) +9x5) ). Then you multiply the numbers together, then add them, then multiply that sum by 2.

The surface area is 174.


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