Question

If triangle ABC is congruent to triangle XYZ, then which of the following is congruent to CA? A. AB. B. XY C. YZ D. ZX

Answer 1

When we point out the congruence of triangles ABC and XYZ, 

which we denote by $ABC\cong XYZ$, the order of the letters is very important.

What we understand from $ABC\cong XYZ$ is :

$\angle A \cong \angle X\\\\\angle B \cong \angle Y\\\\\angle C \cong \angle Z$

and:

$AB \cong XY\\\\BC \cong YZ\\\\ AC \cong XZ$

Following this logic of preserving the order precisely, side CA is congruent to ZX


Answer: D) ZX