What is the circumference of the radius 6 ft?

Answer 1

If that's a circle you are talking about, you need to multiply the radius by 2 x pi.

Answer 2

37.68

Here's the work:
Circumference = pi x diameter
C = pi x (6 x 2)
C = 3.14 x 12
C = 37.68

Answer 3

The circumference of a circle equals 2 (pai) r. Pai equals 3.14 and r is the radius. Accordingly, the circumference equals 2 x 3.14 x 6 feet. The result is 37.68 feet.