Online Geometry Problems

Online Geometry Problem 797: Parallelogram, Angle Bisector, Isosceles and Similar Triangles. Level: High School, SAT Prep, College, Mathematics Education

The figure below shows a parallelogram ABCD, AE is the bisector of angle BAD. If AE and DC meet at F, prove that triangles ABE, ECF, and ADF are isosceles and similar.

Parallelogram, Angle Bisector, Isosceles and Similar Triangles
 


 

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