You can put this solution on YOUR website! if i have an angle on a circle that is 40 degrees and the radius is 4 what is the area of that angle?
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The area of the circle = (pi)4^2 = 16(pi) sq. units.
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Area of the sector = (40/360)(16pi) = (1/9)16pi = 1.778(pi) sq units
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Cheers,
Stan H.
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