What is the circumferance of a 12' diameter circle?

Answer 1

The circumference of a circle equals 2(pi)r where pi = 3.142 and r = radius. In this case we know diameter not radius, but remember that diameter = 2r, so 12 = 2r r = 6 Plugging this back into our first equation we get: 2(3.142)(6) Circumference = about 37.7 feet