+The **Pythagoras Theorem** is a fundamental relation in [Euclidean geometry](/wiki/Euclidean_geometry) among the three sides of a [right triangle](/wiki/Right_triangle). It states that the square of the hypotenuse is equal to the sum of the squares of the other two sides.
+## See also
+- [Triangle](/wiki/Triangle)
+- [Geometry](/wiki/Geometry)
+- [Proof](/wiki/Proof)