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February 7th, 2009, 05:07 PM   #1
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Geometry Help Urgent!!!

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February 8th, 2009, 11:16 AM   #2
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Re: Geometry Help Urgent!!!

The way i saw it was that the line TO sort of acts as a line of reflection by preserving all of the angles and since it is the radius of the circle, the top semi circle is reflected also. This is by no means a proof though.
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February 8th, 2009, 01:15 PM   #3
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Triangles OPT, ORT are congruent (side, side, angle, not ambiguous as the larger of these sides is opposite the angle), so PT = RT. Similarly, ST = TQ.
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