Question

Which of these is a Pythagorean triad? A. 5, 12, 13 B. 1, 2, 3 C. 6, 9, 10

Answer 1

Answer:

A) 5, 12, 13

Step-by-step explanation:

$5^2 + 12^2 = 169$

$13^2 = 169$

∴ Option A is a Pythagorean triad.

$1^2 + 2^2 = 5$

$3^2 = 9$

∵$5\neq 9$, ∴ Option B is not a Pythagorean triad.

$6^2 + 9^2 = 117$

$10^2 = 100$

∵$117\neq 100$, ∴Option C is not a Pythagorean triad.

∴ A is the only Pythagorean triad out all three options.

Hope this helps :)