Answer:
The arc is 3/10 of the circumference
Step-by-step explanation:
we know that
The complete circumference subtends a central angle of 2π radians
so
using proportion
Find out what fraction of the circumference represent an arc with a central angle of 3pi/5 radians
[tex]\frac{1}{2\pi}=\frac{x}{(3\pi/5)}\\\\x=\frac{(3\pi/5)}{2\pi}\\\\x=\frac{3}{10}[/tex]