Pythagorean: a=100, b=100 c = 141.421356 Hypotenuse Copy Formula Usedc = √(100² + 100²) = √(10000 + 10000) = √20000 = 141.421356 Frequently Asked Questions If a=100 and b=100, what is c?c = √(10000+10000) = 141.421356.