Verified Answer :

Pi is a numerical constant that represents the ratio of a circle's circumference to its diameter on a flat plane surface.The value is the same regardless of the size of the circle.

Answer:

Pi represents ratio of the circumference of any circle to the diameter of that circle.

Step-by-step explanation:

We are asked to tell what ratio does pi represent in a circle of any size.

We know that all circles are similar as when we divide circumference of circle by its diameter we get same value that is pi.

\(C=2\pi r\), where,

C = Circumference of circle

We know that diameter of circle is two times radius, so we can manipulate our equation as:

\(C=\pi D\), where, D represents diameter of the circle.

Let us divide both sides of our equation by D.

\(\frac{C}{D}=\frac{\pi D}{D}\)

\(\frac{C}{D}=\pi\)

Therefore, pi represents ratio of the circumference of any circle to the diameter of that circle.