Problem 650: Tangent Circles, Diameter, Radius, Chord, Perpendicular

Online Geometry

The figure shows the circle C1 with radius OA and circle C2 with diameter OA tangent at A. AB is a chord of circle C1 and the line BCD is perpendicular to OA. If AC = 1, find the measure of AB.

  

Tangent Circles, Chord, Diameter, Perpendicular
 
 

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