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Home > GC > Chapter 9 > Lesson 9.2.3 > Problem 9-80

9-80.

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

Segment with points from left to right labeled, A,D,B,E, additional segments, A C, E F, C B, & F D, Segments C B & D F intersect at point labeled G.

If , then .