SOLUTION: The perimeter of a rectangle is 12 cm. Its length is twice its width. Find the rectangle. Is it x(2x)^2=12

SOLUTION: The perimeter of a rectangle is 12 cm. Its length is twice its width. Find the rectangle. Is it x(2x)^2=12

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Question 957156: The perimeter of a rectangle is 12 cm. Its length is twice its width. Find the rectangle.
Is it x(2x)^2=12
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
No.
The perimeter of a rectangle is,

So,

But you also know,

Substituting,

So then,

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