For the given perimeter find the length and width of the rectangle with the greatest area use whole numbers only

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Mathematics

Mona

1 February, 10:11

For the given perimeter find the length and width of the rectangle with the greatest area use whole numbers only

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Aryana Guerra · Answer 1

So, the formula for the perimeter of a rectangle is 2l+2w=p. We know that p=80. Our options for w and l are: 30 and 10, 20 and 20, 25 and 15. To find the are we multiply the length by the width. 30*10=300, 20*20=400, 25*15=375. The greatest area is with the length and width both being 20.