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March 24th, 2012, 04:53 PM   #1
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Circle Proof Problem

Could anyon provide me with the answer? I only have this so far:

Angle ACB = 90 by Thales' theorem and angle BAP = 90 because AP is a tangent.
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March 24th, 2012, 06:08 PM   #2
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Re: Circle Proof Problem

Note that angle ACB is a right angle because AB is a diameter of the circle, and then the two triangles are similar because they share angle P.
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