Answer:
the arc length is, 4.71 yd
Explanation:
Formula for arc length is given by:

where,
r is the radius of the circle
is the central angle in radian.
As per the statement:
In a circle with a radius of 9 yd, an arc is intercepted by a central angle of π/6 radians.
⇒r = 9 yd and

Substitute the given values in [1] we have;
And use 3.14 for π .
yd
Therefore, the arc length is, 4.71 yd