Pythagoras Theorem

The Pythagoras Theorem states that in a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

Example

Let $c$ be the hypotenuse, and $a$ and $b$ be the other two sides. The theorem is expressed as $a^2 + b^2 = c^2$. If $a = 3$ and $b = 4$, then $3^2 + 4^2 = 9 + 16 = 25$, which means $c = \sqrt{25} = 5$.

Pythagoras Theorem

Example

See Also