What is the ratio of the circumference of a circle to twice the diameter of the circle?

# What is the ratio of the circumference of a circle to twice the diameter of the circle?

1. A

2. B

3. C

4. D

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### Solution:

Let the radius of the circle be r and the circumference of the circle be . The diameter of the circle is 2r. To find the ratio of the circumference of a circle to twice the diameter of the circle, divide the circumference by twice the diameter of the circle.

Hence, the correct option is 2.

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