Geometry Problems, Online Education

Geometry Problem 595: Triangle, Equal Angles, Isogonal Lines, Similarity

The figure shows a triangle ABC with the angle ABD equal to angle CBE. If AB = c, BC = a, AD = d1, DC = d2, AE = e1, and EC = e2, prove that Formula to prove.
BD and BE are called isogonal conjugates, since they form the same angle with the bisector of angle ABC.


Geometry problem about triangle, isogonal, metric relation, similarity