Of all the rectangles with an area of 441 square feet, find the dimensions of the one with the smallest perimeter.

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04-04-2017
Mathematics

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Of all the rectangles with an area of 441 square feet, find the dimensions of the one with the smallest perimeter.

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04-04-2017

1*441 & 3*147 & 7*63 & 9*41 &21*21 are all factor pairs of 441

21&21 have the smallest sum and would make for the smallest perimeter

Answer:l=21 w=21

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