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OpenStudy (anonymous):
The surface area of a rectangular prism is 150 cm². If all the sides are tripled, what will the new surface area be? ive gotten up to here(18Lw + 18wh + 18Lh)/(2Lw + 2wh + 2Lh) = Area/150
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OpenStudy (anonymous):
can someone just do this and i wanna see if i did it right
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