Question

A triangle has sides with lengths of 20 meters, 21 meters, and 29 meters. Is it a right triangle?

Answer 1

Yes, the sides form a right triangle.

Explanation:

Pythagorean Theorem:

a² + b² = c²

↓

20² + 21² = 29²

║a² = 20² = 400

║b² = 21² = 441

║c² = 29² = 841

↓

400 + 441 = 841

║This equation is true.

↓

Yes, the sides form a right triangle.