Answer:
Explanation:
The circumference of a circle is found by the formula 2πr. r is defined as the radius, which is the distance from the middle of the circle to any point on its outer curve. In this case, we are given the radius from the line that is drawn halfway through the circle. We can plug in this value (11) and solve it.
C = 2πr
C = 2π(11)
C = 22π cm
Hope this helps!