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title: Pythagorean Theorem
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## Pythagorean Theorem

The Pythagorean Theorem relates the three sides of a right triangle. A right triangle is a triangle in which one of the angles is a right angle (a 90-degree angle). The side of the triangle that is opposite to the right angle is called hypotenuse. Any of the other two side can be named 'base'(b) and the 'perpendicular/height(a)'. The angle opposite to the base(b) is denoted by 'B' and the one opposite to perpendicular'A'. By this the angle C is 90 degrees and is known as a right triangle.

A right triangle can only be isosceles or scalar. Never equilateral.

Let c be the length of the hypotenuse, a and b the length of the other sides.

The theorem states:

c<sup>2</sup> = a<sup>2</sup> + b<sup>2</sup>

Whenever you are given two sides of a right triangle, you can calculate the third one using the Pythagorean Theorem.

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