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Home > CCG > Chapter 9 > Lesson 9.2.3 > Problem 9-92


Examine the diagram at right. Given that , prove that is isosceles. Use any format of proof that you prefer.  

Rectangle A, C, F, E is created without the line segment C, F. On the line segment A, E are two additional points D and B such that from left to right are points A, D, B, and E. Triangle A, C, B and triangle E, F, D intersect at point G.

If , then .