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December 18, 2014

December 18, 2014

Posted by **KC** on Sunday, May 25, 2014 at 1:05pm.

"How many different rectangles can be made with a perimeter of 20 units? (Remember, a square is also a rectangle.)"

- Math -
**Damon**, Sunday, May 25, 2014 at 1:16pmI assume you mean with integer lengths

L + w = 10

L = 5, w = 5 as you said

L = 6, w = 4

L = 7, w = 3

L = 8, w = 2

L = 9, w = 1

the ones with w>L do not count because they are indistinguishable from the ones we have now. , So, 5.

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