What is the length of the hypotenuse, x, if (12, 35, x) is a Pythagorean triple?

In a Pythagorean triple, the hypotenuse is the longest side and satisfies x² = 12² + 35². Thus, x² = 144 + 1,225 = 1,369, and √1,369 = 37. The hypotenuse is 37, choice B.

AI-written and checked against the verified answer.