It's a relation in Euclidean geometry among the three sides of a right triangle. In it, the square of the hypotenuse is equal to the sum of the squares of the other 2 sides.
Pythagoras Theorem is the way in which you can find the missing length of a right angled triangle. The triangle has three sides, the hypotenuse (which is always the longest), Opposite (which doesn't touch the hypotenuse) and the adjacent (which is between the opposite and the hypotenuse). Pythagoras is in the form of; a<em><u /></em>²+b²=c² However, it can also be written in the form of c²=a²+b² In order to find the hypotenuse, you will have the length of two sides, for example, these could be 3 and 4. As 'C' is always the hypotenuse, you have to work out the two other lengths, and you do this by squaring the numbers. 3²=9 and 4²=16. As you're looking for C, you've got to add these together 9+16=25 As a²+b²=c², this means that the answer for C is the square root of 25. √25= 5
