Question

An arc subtends a central angle measuring \dfrac{3\pi}{5}

5
3π
​
start fraction, 3, pi, divided by, 5, end fraction radians.


What fraction of the circumference is this arc?

Answer 1

The answer should just be 3pi/5

Answer 2

3/10 of the circumference

Explanation:

Take the fraction between the central angle and the total degree measure of the circle, which is 2π.

• (3π/5)/2π
• 3π/10π
• 3/10 of the circumference