Side side angle is considered ambiguous because it is inexact because it could be either one, two, or no triangles. We cannot just simply apply the Law of Sines to the given information because we do not know if the side will reach to the bottom side. I would explain this to someone that had no knowledge to it by having them draw out an angle and label it. Then draw a side and label that. Then give another side that is the opposite of the angle. Then i would have them draw out the obtuse and acute sides and figure out the other angles and sides.
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