Answer:
The Circumference of the circle = C = 24π mm
Hence, option C is true.
Explanation:
Given
Radius r = 12mm
To Determine
Circumference of circle C = ?
Using the formula to determine the Circumference of the circle
C = 2πr
substituting r = 12mm in the equation
C = 2π(12)
C = 24π mm
Therefore, the Circumference of the circle = C = 24π mm
Hence, option C is true.