Problem 347. Triangle, Altitude, Perpendicular, Circle, Concyclic points.
Level: High School, College, SAT Prep.
The figure shows a triangle ABC with
the altitude BD. DE is perpendicular to AB and DF is
perpendicular to BC. Prove that the points A, E, F, and C are
concyclic (lie on a same circle).
|
Recent Additions
|