Prove δabc ~ δgef.

me with this question, i would really appreciate it!
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From what you have given, there isn't a way to solve the problem. There has to be something more.  Like angles and/or sides being equal to each other.  From the diagram, I am guessing that is it base off of the lower part of the triangle and the final part would have to do with corresponding parts of congruent triangles are congruent.