Given the circle with a center O
We will find the arc length of AB
As shown the radius of the circle = r = 9 m
And the measure of the arc = 124°
The arc length will be as follows:
[tex]Arc\text{ }length=(\theta\degree *\frac{\pi}{180})*r=124*\frac{\pi}{180}*9=19.47787[/tex]Rounding to two decimal places.
So, the answer will be:
Arc length = 19.48 m