2 years ago

if a length of a rectangle is four times its width. what is its perimeter is 90m. how can I find the dimentions

1 answer:

4 0

W = width
4w = length

perimeter = 2(length) + 2(width)
perimeter = 2(4w) + 2w
perimeter = 8w + 2w
perimeter = 10w
90 = 10w
9 = w

length = 4w, 4(9) = 36.

Length is 36 m. Width is 9 m.

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