y A(3, 4) B O x In the xy-plane above, points A and B are on the circle with center O. What is length of AB ? A) 5 B) 6 C) 2?5 D) 5?2
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If the coordinates are not given, assume general coordinates based on the information available. For example, let O be at (h, k) and the radius of the circle be r. Show more…
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