SOLUTION: the measure of the arc of a sector is 72 degrees and the area of the sector is 5 pi inches squared what is the radius?

Question 1081747: the measure of the arc of a sector is 72 degrees and the area of the sector is 5 pi inches squared what is the radius?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
area is pi*r^2
72 degrees is 1/5th of the circle's area, so the entire area of the circle is 25 pi in ^2.
That would make the radius 5 inches ANSWER
the area of the entire circle is 25 pi in^2
the area of a sector, 1/5th the area, would have an arc of 72 degrees and an area of 5 pi in ^2.

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