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1 September, 07:54

If a circle has a radius of 9 and a sector defined by a 254 degree arc, what is the area of the sector

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  1. 1 September, 08:11
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    The answer is 179.451 or 1143π/20.

    The arc is 254°. A circle is 360°. This means the arc makes up 254/360 of the circle. We will multiply this fraction by the area of the circle, which is

    A = πr² = π (9) ² = 81π = 254.34

    81π (254/360) = 20574π/360 = 1143π/20 = 179.451
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