Question

The legs of a 45-45-90 triangle have a length of eight units. What is the length of its hypotenuse?

Answer 1

The hypotenuse of a 45 45 90 triangle equals one of the legs times the square root of 2
hypotenuse = 8 * 1.4142135624
hypotenuse = 11.3137084990

Source:
http://www.1728.org/trig2.htm