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April 18, 2014

April 18, 2014

Posted by **Beatrice** on Thursday, December 8, 2011 at 8:13pm.

- geometry -
**Steve**, Thursday, December 8, 2011 at 11:14pmDraw the figure

x^2 + (x+7)^2 = 13^2

x^2 + x^2 + 14x + 49 = 169

x^2 + 7x - 60 = 0

(x+12)(x-5) = 0

x = 5

sides are 13,13,10

altitude is 12, making the half-triangle a 5,12,13 triangle.

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