Answer:
The length of the third side (Hypotenuse) is 7.1556411313
Explanation:
In order to find the third side(Hypotenuse) we use a formula called the phytogorean theorem which was invented by a philosopher named Pythagoras.

We now apply the given values to the equation

Squaring the numbers we get,


We now find the root of the number to find the hypotenuse which is,


Hence , the length of the third side (Hypotenuse) is 7.1556411313