SOLUTION: Why ssa congruency doesn't work explain it with figure and examples?

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Question 765951: Why ssa congruency doesn't work explain it with figure and examples?
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
If you know the measure of sides AB, and BC=BD, and the measure of an acute angle theta,
you still do not know if the triangle with those ssa measures is the acute triangle ABC, or its evil twin, the obtuse triangle ABD.
If the known angle theta is obtuse, then there cannot be an evil twin.