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The figure shows a square divided into a square of side x units and four congruent rectangles. What is the perimeter, in units, of one of the four congruent rectangles? Express your answer in terms of x and y.

 

 Jul 6, 2022
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Each rectangle has 2 short sides and 2 long sides. 

 

The long sides are just y, and the short sides are \(y - x\).

 

This means we have: \(y + y - x = \color{brown}\boxed{2y - x}\)

 Jul 6, 2022

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