Question

Which of the following is a Pythagorean triple?
.5, 1.2, 1.5
.3, .4, .7
10, 24, 26
7, 9, 13

Answer 1

A Pythagorean triple is a set of 3 numbers a, b, and c such that a^2 + b^2 = c^2.

To check if a set is a Pythagorean triple, square all the numbers, then add the two smaller ones and see if they equal the larger one.

Answer 2

thank you @DDCamp