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2011 PUMaC Geometry A4

Source:

September 24, 2019
geometry

Problem Statement

Let ABCABC be a triangle with AB=15,BC=17AB = 15, BC = 17, CA=21CA = 21, and incenter II. If the circumcircle of triangle IBCIBC intersects side ACAC again at PP, find CPCP.
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