SOLUTION: the diameter of the circleis 5 cm. the angle of the unshaded portion is 60 degrees. find the area of the unshaded potion.

Question 75497: the diameter of the circleis 5 cm. the angle of the unshaded portion is 60 degrees. find the area of the unshaded potion.
Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!

The area(A) of a circle is:

In this problem, cm. Plug this in for r:

Since a circle has 360 degrees,the shaded portion represents 60/360 or 1/6 of the circle. So the area of the shaded portion is 1/6 of the total area or:
Area of shaded portion:

and that's about equal to

Hope this helps---ptaylor
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