Can someone help me out...I am studying for an exam and cannot figure out the attached

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- Mar 7th 2010, 11:31 AMigottaquestiontriangle in a circle rt angle
Can someone help me out...I am studying for an exam and cannot figure out the attached

- Mar 7th 2010, 01:26 PMWilmer
Drop a perpendicular from C to AB. OK?

- Mar 7th 2010, 01:35 PMmasters
Hi igottaquestion,

If you're trying to prove the theroem that an inscribed angle in a semicircle is a right angle, then a pretty good demonstration can be found here:

Lesson Angle in a semicircle - Mar 7th 2010, 01:56 PMKrahl