Question

which is the following is not a pythagorean triplet

a) 18,80,82
b) 6,8,10
c) 16,63,65
d) 25,26,20​

Answer 1

Answer:

(d)

Step-by-step explanation:

To check Pythagorean triplets :

Square of longest side should be equal to sum of square of other two sides.

a) 18² + 80² = 82²

324 + 6400 = 6724

6724 = 6724

b) 6² + 8² = 10²

36 + 64 = 100

100 = 100

c) 16² + 63² = 65²

256 + 3969 = 4225

4225 = 4225

d) 20² + 25² = 26²

400 + 625 = 676

1025 ≠ 676

Therefore, 25, 26 and 20 are not Pythagorean triplets.