No, in order to fine the arc length you need a formula which is: Circumference x arc measure/360 degrees
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Arc measure is the number of radians. Two similar arcs could have the same arc measure. Arc length is particular to the individual arc. One must consider the radius of the arc in question then multiply the arc measure (in radians) times the radius to get the length.
32 degrees
Whoever wrote this question for you would be happy to see "pi" in the answer rather than "3.14." So I will use pi. Measure of central angle/360=arc length/2pi*r; measure.../360=pi/2pi*9; measure.../360=1/18; measure...=360/18=20. The measure of the central angle is 20 degrees.
arc length/2pi*r=measure of central angle/360
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