What is the length of the arc that subtends a central angle of 82° for a circle with a radius of 9 centimeters? use 3.14 for π when necessary.

Because arc length is part of the outside of the circle, we have the circumference along with the central angle in that formula.  The formula for circumference is , and with the central angle fitted in there, the formula for the arc length is

Ours would look like this, then:

or length = 6.437 cm