Question

Is AAA a valid criterion for congruency of triangles?​

Answer 1

Answer:

No, AAA is not a valid criterion for congruency of triangles, as the angles can be same but the size of the traingle would be bigger.

Answer 2

Answer:

No its not

Step-by-step explanation:

By counter-example.

Triangle ABC is an equilateral triangle, all angles are 60 degrees, each side is 2 units long. Triangle DEF is an equilateral triangle, all angles are 60 degrees, each side is 1 unit long.

All three sets of corresponding angles are equal, 60 = 60, 60 = 60, and 60 = 60.

But none of the corresponding sides are equal 2 is not equal to 1.

So the triangles are not congruent, despite all three pairs of corresponding angles being congruent(AAA)