Question

Which of the following sets of numbers is not a Pythagorean triplet? 12, 16, 20 14, 48, 50 16, 30, 34 20, 48, 56

Answer 1

if a^2 + b^2 not equal c^2 then that set is not a Pythagorean 

answer is 20, 48, 56

because

20^2 + 48^2 = 400 + 2304 = 2704
56^2 = 3136

2704 < 3136