Pythagorean: a=40, b=100 c = 107.703296 Hypotenuse Copy Formula Usedc = √(40² + 100²) = √(1600 + 10000) = √11600 = 107.703296 Frequently Asked Questions If a=40 and b=100, what is c?c = √(1600+10000) = 107.703296.