Area and perimeter of a rectangle equality question

demonsword

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Sep 30, 2006
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When are perimeter and area of a rectangle equal? When they are not? I'm asked to provide 2 examples for each instance.

I got 1 answer for each, for equal i said that all sides lenghts must add up to the product of lenght times width.

For unequality, i said that sides won't add up to the number which is also the product of lenght times width.

What other ways are there?
 
demonsword said:
When are perimeter and area of a rectangle equal? When they are not? I'm asked to provide 2 examples for each instance.

I got 1 answer for each, for equal i said that all sides lenghts must add up to the product of lenght times width.

For unequality, i said that sides won't add up to the number which is also the product of lenght times width.

What other ways are there?
From LW = 2W + 2L, Ll = 2W/(W - 2)

A few selections of W from 1 on up will show you that only L = 6, W = 3 and L = W = 4 satisfy the requirement. (L = 3, W = 6 work also but are really the same as L = 6 and W = 3.
 
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