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Online Geometry Problem 1172: Cyclic Quadrilateral, Circle, Secant, Triangle, Similarity, Metric Relations. Level: High School, Honors Geometry, College, Mathematics Education

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In a cyclic quadrilateral ABCD, AB = a, BC = b, CD = c, and AD = d. AB and DC extended meet at E (see the figure). If BE = x, prove that Problem 1172 formula
 

Problem 1172 Cyclic Quadrilateral, Circle, Secant, Triangle, Similarity, Metric Relations, Plane Geometry
 
 

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Last updated: Dec 12, 2015 by Antonio Gutierrez