SOLUTION: Hello Do you know what the formula to find the area of a shaded region in a circle is? In this problem I'm working on, the radius is 5m and the shaded region is 75 degrees.

Question 143127: Hello
Do you know what the formula to find the area of a shaded region in a circle is?
In this problem I'm working on, the radius is 5m and the shaded region is 75 degrees.
Thank you
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
First you need to find the area of the 5m circle.
a=pir^2
a=3.14*5^2
a=3.14*25
a=78.5 m^2 is the area.
Now determine what percentage of the entire circle is contained in 75 degrees.
75/360=.20833 or 20.833 % of the circle.
.20833*78.5=16.35 m^2 is the area within the 75degree slice.

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