Geometry Problems, Online Education

Problem 536: Intersecting Circles, Chord, Perpendicular. Level: High School, SAT Prep, College Geometry

The figure shows the intersecting circles O and O' at A and B. The center O is on the circle O'. If OD is perpendicular to chord AC, prove that AD = BC + CD.
 

Intersecting Circles, Chord, Perpendicular
 

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