Online Geometry Problems

Online Geometry Problem 624: Triangle, Incenter, Excenter, Incircle, Excircle, Similarity. Level: High School, Honors Geometry, College, Mathematics Education

The figure shows a triangle ABC with the incenter I and excenter E corresponding to BC. Prove that the triangles AIB and ACE are similar.
 

Triangle, Incenter, Excenter, Similarity

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