22. the circumference of the circle below is
108 meters. if the interior angle n is 60°,
what is the length in meters of arc ab?
f) 5
g) 9
h) 11
j) 12
k) 18

The length of arc of circle with interior angle 60° is 18 meter  

Step-by-step explanation:

Given as :

The circumference of circle = C = 108  meters

The interior angle at center of circle = 60°

Let The length of arc = L

So ,

Length of arc = L =

∵ circumference of circle =

Or,  108 =

∴  r =

So, Length of arc =

Or, L =

Or, L = = 18 m

Hence The length of arc of circle with interior angle 60° is 18 meter  Answer