Online Geometry Problems

Online Geometry Problem 625: Triangle, Parallel Lines, Congruence, Angle Bisector, Similarity. Level: High School, Honors Geometry, College, Mathematics Education

The figure shows a triangle ABC with AD parallel to CB, CE parallel to AB, and AD = CE. If AE and CD meet at F, prove that BF is the bisector of the angle ABC.
 

Triangle, parallel, congruence, angle bisector

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