In
mathematics, the
Pythagorean theorem, also known as
Pythagoras's theorem, is a relation in
Euclidean geometry among the three sides of a
right triangle. It states that the square of the
hypotenuse (the side opposite the
right angle) is equal to the sum of the squares of the
other two sides. The
theorem can be written as an
equation relating the lengths of the sides
a,
b and
c, often called the "Pythagorean equation":
where
c represents the length of the hypotenuse and
a and
b the lengths of the triangle's other two sides.