Answer with Step-by-step explanation:
For the Pythagorean triples, the square of largest number must be equal to the sum of squares of remaining two numbers.
1,2,5
5²=25
1²+2²=5
25≠5
Hence, it is not a Pythagorean triple.
6,8,14
14²=196
6²+8²=100
100≠196
Hence, it is not a Pythagorean triple.
8,15,17
17²=289
8²+15²=289
Hence, it is a Pythagorean triple
10,24,26
26²=676
10²+24²=676
Hence, it is Pythagorean triple
15,20,30
30²=900
15²+20²=625
900≠625
Hence, it is not a Pythagorean triple
28,45,53
53²=2809
28²+45²=2809
Hence, it is a Pythagorean triple