Question

Arc AB is 1/3 of the circumference of a circle. What is the radian measure of the central angle

Answer 1

C. 2 pi / 3

Explanation:

E2020 2022

Answer 2

Answer:
`(2\pi )/(3)`

Explanation:

The circumference of the circle is 2 π r, where r is the radius of the circle. This means that in any circle, there are 2 π radians. Given arc AB is one third of the circumference.

One third of circumference that is 2π=
`(1)/(3).2 \pi =(2\pi )/(3)`

The measure of the central angle is
`(2\pi )/(3)`