The circumference of a circle is 12pi. What is the diameter?

12

Step-by-step explanation:

The circumference of a circle is given as

Circumference = 2πr

Where; r is the radius of the circle

The diameter of a circle is 2 times the radius of that circle. It cuts the circle into 2 equal halves

Given, circumference of the circle = 12π

12π = 2πr

make r the subject by dividing both sides by 2π

12π/2π = 2πr/2π

r = 6

Diameter = 2r

= 2 X 6 = 12