Answer: The second choice.
Step-by-step explanation: I don't believe anyone will read this and I don't want to waste my time typing this pointless explanation.
54 is a composite number. 54 = 1 x 54, 2 x 27, 3 x 18, or 6 x 9. Factors of 54: 1, 2, 3, 6, 9, 18, 27, 54. Prime factorization: 54 = 2 x 3 x 3 x 3, which can also be written 2 x 3³.
Basically use pythagorean theorem to solve :))