For a given circle, which ratio describes the value of

π
?

A.
the radius of the circle : the circumference of the circle

B.
the diameter of the circle : the circumference of the circle

C.
the circumference of the circle : the radius of the circle

D.
the circumference of the circle : the diameter of the circle

1 answer

The correct ratio that describes the value of \( \pi \) is:

D. the circumference of the circle : the diameter of the circle.

This is because the constant \( \pi \) is defined as the ratio of the circumference \( C \) of a circle to its diameter \( d \):

\[ \pi = \frac{C}{d} \]