A right triangle is a triangle that has one right angle, or a 90-degree angle. There are several ways to determine if a triangle is a right triangle.
One way is to use the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. In other words, if a^2 + b^2 = c^2, then the triangle is a right triangle.
