The figure above shows two concentric circles with center O. If OD = 3, DB = 5, and the length of arc AB is 5π, what is the length of arc CD?
A.
B.
C. 3π
D.
Answer:B
The figure above shows two concentric circles with center O. If OD = 3, DB = 5, and the length of arc AB is 5π, what is the length of arc CD?
A. B. C. 3π D.
Explanation: B