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April 18, 2015

April 18, 2015

Posted by **tina** on Friday, August 2, 2013 at 4:05pm.

- geometry -
**Steve**, Friday, August 2, 2013 at 5:20pmsince R+S+T=180°

5x-3 + 3x+2 + x+10 = 180

9x +9 = 180

9x = 171

x = 19

m<R = 5x-3 = 92°

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