When a triangle is a 45-45-90 triangle, the following rules apply:
-the 2 legs are equal lengths - the length of the hypotenuse is: the square root of 2 x the length of a leg. - the length of the leg is: hypotenuse divided by the square root of 2.
if the hypotenuse is 10, then 10 divided by the square root of 2 is how you find the leg. the square root of 2 is <span>1.41421356237. 10 divided by </span>1.41421356237 is <span>7.07106781188, which can be rounded to about 7.1. The length of one leg is about 7.1 units!</span>
