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May 15th, 2017, 06:35 PM  #1 
Newbie Joined: May 2017 From: Buffalo NY Posts: 2 Thanks: 0  Proving of two circles orthogonal to each other
PLEASE SEE the ATTACHED IMAGE TO SEE QUESTION AND FIGURE. Previous problem says the following (may or may not be helpful): Given a circle with center O and a point A ≠ O inside the circle, we construct the line perpendicular to OA at A and denote by X one of the intersections of that line with the circle. The tangent line to the circle at X then intersects OA at point C. We let Q be the midpoint of AC. Last edited by skipjack; May 16th, 2017 at 06:15 AM. 

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circles, euclidean geometry, orthogonal, proving 
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