Pythagorean: a=40, b=50 c = 64.031242 Hypotenuse Copy Formula Usedc = √(40² + 50²) = √(1600 + 2500) = √4100 = 64.031242 Frequently Asked Questions If a=40 and b=50, what is c?c = √(1600+2500) = 64.031242.