what is the ratio of the circumference of circle to its radius?
please help me
the definition of π is the ratio of the circumference to the diameter of a circle.
So, C/d = π
The diameter is twice the radius
So, C/2r = π
C/r = 2π
The ratio of the circumference of a circle to its radius is constant and is represented by the mathematical constant pi (π). The exact value of π is approximately 3.14159, but it is an irrational number, which means it goes on infinitely without repeating.
To find the ratio, you need to divide the circumference of the circle by its radius. The formula for the circumference of a circle is given by C = 2πr, where C represents the circumference and r represents the radius.
So, the ratio is given by C/r = (2πr)/r = 2π.
Therefore, the ratio of the circumference of a circle to its radius is always 2π (or approximately 6.28318).