Pythagorean: a=40, b=60 c = 72.111026 Hypotenuse Copy Formula Usedc = √(40² + 60²) = √(1600 + 3600) = √5200 = 72.111026 Frequently Asked Questions If a=40 and b=60, what is c?c = √(1600+3600) = 72.111026.