CHILDREN ARE STILL TAUGHT PYTHAGORAS’ THEOREM TODAY
This states that in a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. In other words, when a triangle has a right angle and squares are found of each of the three sides, then the biggest square has the same area as the other two squares combined. The equation can be used to work out the length of a third side if only two measurements are given.