Go Geometry Problems

Online Geometry Problem 703: Triangle, Incircle, Tangency point, Diameter, Congruence. Level: High School, Honors Geometry, College, Mathematics Education

The incircle O of a triangle ABC touch BC at D. DE is a diameter and AE extended meets BC at F. Prove that BF and CD are congruent. (See the figure.)
 

Triangle, Incircle, Diameter, Congruence, Problem
 

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