sorry but can u post a better picture i cant really help if the picture isn’t good
Answer:
i think your question might be incomplete. the necessary part of the question seems to be missing.
They all all different. Search up how to find;Adjacent, Opposite and Hypotenuse. You always need to know the rule: SOH CAH TOA
A is the answer, I think.
First you need to know that square means multiplicatin by itself to itself so square of 20 means 20×20=400