A. determine whether side-side-angle (ssa) is a valid means for establishing triangle congruence. in this case, you know the measure of two adjacent sides and the angle opposite to one of them. if it is a valid criterion, explain why. if it is not valid, (hint: try constructing a triangle where the known angle is opposite to the shortest known side.) if you construct a counterexample, paste a screenshot of your work in the space below.

In this case SSA is not valid for congruence because there are unknown quantities, meaning there is not exactly one triangle that could exist for any given SSA combination. SSA gives two possible triangles, one which is congruent and one which is not.

Step-by-step explanation:

We have two different triangles, even though they have the same angle and side measurements, this is because we are left with the other two angles who allows us to have two different triangles since their positions can vary, so using SSA to  prove congruece between two triangles is not always enough evidence.

the square root of what number? if you add that, then someone will probably answer the question.