Question

Which best explains whether a triangle with side lengths 5 cm, 13 cm, and 12 cm is a right triangle?

Answer 1

5-12-13 is a Pythagorean Triple.

Explanation:

Pythagorean Theorem: a² + b² = c²

We can use the Pythagorean Theorem to prove that 5-12-13 is a right triangle:

5² + 12² = 13²

25 + 144 = 169

169 does equal 169.