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If the blue sector of the circle is a semicircle, find the area of the green sector with a given radius of 6 units.
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Not Answered
Updated 8/14/2011 10:07:03 AM
2 Answers/Comments
18.84 units squared
Added 8/14/2011 10:07:03 AM
What is the diameter of a circle with an area of 81 pi in2?
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Not Answered
Updated 10/9/2014 10:57:48 PM
1 Answer/Comment
18 is the diameter of a circle with an area of 81 pi in2 .
Let radius = r
area = pi*r^2 = pi*81
r^2 = 81
r = 9.
Diameter = 2r = 2*9 = 18 .
Added 10/9/2014 10:57:48 PM
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