Answer:
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A.) The circumference of the tire is 94.2
B.) The tire will have to rotate 56 times to
travel 1 mile.
10 apples..........................................
Yes, yes it is; well done.
Getting the central area of a polygon is not possible. Probably the question refers to the central angle. In a a regular polygon, getting the central angle is that you need to use the formula.
Central Angle of a polygon = 360 degrees / number of sides of a polygon.
Why 360 degrees? Because, a circle has a total of 360 degrees. And a circle is a polygon with no sides.