Yo sup??
By the formula
X=l/r
l=rX
Where r is the radius
l is the lenght
X is the angle
Plugging in the values we get
l=π/3*1
=π/3 units
Therefore the correct answer is option C
Hope this helps
X(domain) = 2
y (range)= -4
just use the process of elemnation to firgure out the awsner to there question