Question

What is the ratio of the circumference of a circle to the diameter of the circle​

Answer 1

C / d = π

Explanation:

Note that the formula for C of a circle of radius d is C = πd.

If we want the ratio of the circumference of the circle to its diameter, we divide both sides by d, obtaining C / d = π.

Answer 2

The ratio of circumference of circle to its diameyer is the number π ,a mathematical constant, commonly approximated as 3.14159 :)