multiply the width by 2 and then subtract that to the perimeter then divide the answer by 2 to get the length
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Because the perimeter is lenght + length +width +width, you do perimeter - double the width, and then halve the remaining number. that should give you the length.
perimeter = 2 x (length + width) ⇒ length + width = perimeter ÷ 2 ⇒ length = (perimeter ÷ 2) - width So to find the length of the given rectangle, subtract the width from half the perimeter is how to do it. IF you meant "What is the length..." then: length = perimeter ÷ 2 - width = 40 ÷ 2 - 2 in = 20 - 2 in = 18 in
The width would be: P - (L*2) = W*2 Perimeter = P Length = L Width = W
by appying 2l+2w
All we can tell from the information you have given is that the length plus the width is 8.8...