Question

on circle A, arc BC has measure of 36 degree and an arc length of 4 pi units. what is the circumference of circle A

Answer 1

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.

Step-by-step 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