Question

Identify, with reason, if the following is a Pythagorean triplet.
(4, 9, 12)

Answer 1

In the triplet (4, 9, 12),
4² = 16, 9² = 81, 12² = 144 and 16 + 81 = 97 ≠ 144
The square of the largest number is not equal to the sum of the squares of the other two numbers.
∴ (4, 9, 12) is not a pythagorean triplet.