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Unique Circle Equal Angles
Problem
Triangles ABC and ABD share the base AB.
Prove that a unique circle passes through all four points A, B, C, and D, iff (if and only if) α = β.
Problem ID: 249 (27 Nov 2005) Difficulty: 3 Star
Triangles ABC and ABD share the base AB.
Prove that a unique circle passes through all four points A, B, C, and D, iff (if and only if) α = β.
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