2. Which of the following represents the relationship between the circumference, C, and diameter, d, of any circle?

The ratio of the circumference of a circle to the diameter of that circle is the value pi (22/7)

Step-by-step explanation:

Mathematically,

the circumference of a circle is by the formula;

C = 2 * pi * r

Now, as we know, 2r is d where r is the radius of the circle and d is the diameter of the circle

that means;

C = pi * d

hence;

C/d = pi

So the ratio of the circumference of any circle to the diameter is the value called pi