Answer:the A and the B must ''BE'' a angle so well if you add ''15 and 8'' it will add up to 23 but C is next to the two straight lines.
Step-by-step explanation:we need to find the perimeter of all of the sides, now the diagonal side is not like the others it is going in a diagonal way and so it may not have a perimeter, here is why:
- because A and B have no side to prove that they are a angle.
- because it is going in a diagonally way so that does not count for the others.
- and because anytime you put lines in it you get confused if it is each of a number... so you can say it is 23 for now.
