circumference of a circle formula

Lets discuss on a geometrical shape which we been discussing in our day to day life. Lets work on circle and work on circumference of a circle formula below.

What is a circle:- The circle is a shape with points the same distance from the center. Now lets work on its circumference. The formula to measure the circumference of a circle is d=2.r

Example 1(circumference of a circle formula):

The radius of a circle is 2 inches. What is the circumference?

Solution:

d=2.r

d= 2 · (2 in)

d= 4 in

c=pi.d

d= 3.14 · (4 in)

d= 12.56 in

Lets work on decimal to fraction calculator in my next post until keep :-)))))).....