SOLUTION: How can I prove triangle labeled ∆ AGC is isosceles? I have to show in a two column chart how the triangle is isosceles. I have no idea where to begin can you help me?

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Question 152071: How can I prove triangle labeled ∆ AGC is isosceles? I have to show in a two column chart how the triangle is isosceles. I have no idea where to begin can you help me?

Answer by jojo14344(1513)   (Show Source): You can put this solution on YOUR website!
If triangle exists as isosceles triangle, then
,
also,

You have to take into consideration that whatever length you extend the vertex on point and (at the same length), will always be equal to .
Thank you,
Jojo

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