Question

Given a circle with a radius of 5, which equation expresses π as the ratio of the circumference of a circle to its diameter?

Answer 1

Answer: Ratio of circumference of a circle to its diameter is 22:7.

Step-by-step explanation:

Since we have given that

Radius of circle = 5

Diameter of circle = 10

As we know the formula for "Circumference of circle":

Circumference of circle is given by

$2\pi r$

Hence, ratio of circumference of circle to its diameter is given by

$Circumference:Diameter\\\\2\pi r:2r\\\\\pi:1\\\\22:7$

Answer 2

π = C / 10    ( the is 10 because  diameter = 2 * radius)