Which of the following statement is not true about congruent triangle?

Question

A. Corresponding parts of congruent triangles are congruent

B. If ∆ABC is equilateral, then ∆ABC ≅ ∆CBA

C. Congruence for triangles is an equivalence relation

D. Congruent triangles may or may not have the same size and shape

Answer 1

The answer is D. Congruent triangles may or may not have the same size and shape.

Congruent triangles are triangles that are the exact same size and shape, they are equals, so A is true, the corresponding parts of each triangle are congruent because the triangles are the same. B is true because equilateral triangles have the same side length for all three sides, so no matter how you rotate an equilateral triangle it is still going to look the same. C is true because congruence is an equivalence relation.

Answer 2

option D ruins the definition of congruent triangles... there is no may or may not