Which circles have a circumference of 18pi units?

Choose all answers that are correct.


A.a circle with a radius of 9 units


B.a circle with a radius of 18 units

C.a circle with a diameter of 18 units


D.a circle with a diameter of 36 units

Verified Answer :

It's A and C, I've taken a test that has this question and it was correct when I answered this, so A and C is your answer.