So, how do you apply CPCTC in your geometry homework? First, you need to identify those congruent triangles - look for triangles with the same size and shape. Then, use the CPCTC theorem to conclude that their corresponding parts are also congruent. Easy peasy, lemon squeezy!
But wait, there's more! You can also use CPCTC to prove that two triangles are congruent in the first place. Just show that their corresponding parts are congruent, and voilà - you've got yourself a pair of congruent triangles! It's like a fun little geometry puzzle to solve.