1 Answer

Luc Ebert · Answer 1 · 2021-01-26T18:00:59+0000

Perimeter: 2w+2l

We know the width and the perimeter, which is 18 and 76, so let's plug it in.

76=2(18)+2l

76=36+2l isolate the variable x!

40=2l

20=l

every length is 20 inches.

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