C is the correct answer
explanation: the opposite is the always the positive or negative of the number
If I am correct, the answer should be D. If you need further explanation, I can supply you with that as well.
Answer:
pi times d
Step-by-step explanation:the actuall formula is 2 pi r but since the radius times 2 is the diameer its pi times d hope this helps god bless
Your 48 years old. All I did was multiply 24 by 2/1 (reciprocal)