Which set of numbers represents a pythagorean triple? 27, 38, 42?

Where are the sets, u gave only one choice

pythagorean theorem: in a right triangle with sides a and b and hypotenuse c, a^2 + b^2 = c^2 where c is the hypotenus

27, 36, 45

Divide by 9 - - > 3, 4, 5 triangle.

3^2 + 4^2 = 5^2

9 + 16 = 25