In any right-angled triangle, the square of the hypotenuse is equal to the
sum of the squares of the other two sides.
i.e.: c² = a² + b² in the
Find AC in the diagram below.
AB² + AC² = BC²
BC² - AB²
= 13² - 5²
= 169 - 25 = 144
Copyright © Matthew Pinkney 2003