Q. 104.8( 6 Votes )

In triangles ABC

Answer :

Given: ΔABC and ΔPQR, AB = AC, C = P and B = Q


B = C (opposite angles to equal sides are equal)

Hence, ΔABC is an isosceles triangle.

C = P and B = Q (given)

P = Q (∵∠B = C)

QR = PR (opposite sides to equal angles are equal)

Hence, ΔPQR is an isosceles triangle.

So, the two triangles are isosceles but not congruent.

As AAA is not the criterion for a triangle to be congruent.

Hence, option A is correct.

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