Given:
A circle is given as below
It is given that arc Length BC = 4*pi and angle 36 degree.
Find:
we have to find circumference of the circle.
Explanation:
Let r be the radius of the circle,
For angle 36 degree, arc length = 4*pi
Since the angle of the whole circle is 360 degree
Therefore, for angle 36 * 10 = 360 degree, circumference = 4*10*pi = 40 pi
