Question

Choose a Pythagorean triplet whose one member 40
9,40
41,9
12,5
None

Answer 1

Pythagorean triplet means
Square of biggest number = sum of square of rest two

So 41^2 = 1681
40^2 = 1600
9^2 = 81

41^2 = 40^2 + 9^2

So, B is the Answer

All the Best !