it equals LxL+WxW
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1+ square root of 5 over 2 not positive
perimeter equals 2 times width plus 2 times length so, perimeter equals 2(3n+2)+2(n-1) = 6n+6+2n-2 = 8n+4.
2 times length plus 2 times width = perimeterhalf the perimeter of a rectangle
To find the answer you would do 161 divided by 14 because width plus length equals area. You just do the problem backwards. the answer ends up being width=11.5cm
the width is 1 and the length is 2. 2 multipleyed by 1 equals 2...