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Which one of the following is not a criterion for congruence of two triangles?（ ）
A. $$ASA$$
B. $$SSA$$
C. $$SAS$$
D. $$SSS$$
Speed
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QuestionMathsClass 7

Which one of the following is not a criterion for congruence of two triangles?（ ）
A. $$ASA$$
B. $$SSA$$
C. $$SAS$$
D. $$SSS$$

B
4.6
4.6

Solution

The $$SSA$$ (or $$ASS$$) combination deals with two sides and the non-included angle. $$SSA$$ (or $$ASS$$) is not a universal method to prove triangles congruent since it cannot guarantee that the shapes of the triangles formed will always be the same.