Congruent Triangles ABO and CBO: Finding Equal Side to BC

Question

The triangles ABO and CBO are congruent.

Which side is equal to BC?

00:07 In congruent triangles, which side matches with side B C?

00:11 Let's explore all the matching sides step by step.

00:33 And that's how we solve this question.

Let's consider the corresponding congruent triangles letters:

$CBO=ABO$

That is, from this we can determine:

$CB=AB$

$BO=BO$

$CO=AO$

Side AB