What is Pythagorus Theorem ? Find the length of BC if given a right angle triangle ABC where AB is 8cm and the length of the hypotenuse AC is 10cm ?

Pythagorus Theorem states that the side of a 'Right Angled Triangle' can be found by using the formulae c² = a² + b² , where c is considered as hypotenuse. In our case the hypotenuse is AC and by putting it in order we get AC² = AB² + BC². Start putting the legths provided we have 10² = 8² + BC² and Rearranging gives us: BC² = 10² - 8². BC² = 100 - 64. BC² = 36. BC = √36.  BC = 6 So, the length of the side BC is 6cm.