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March 25, 2017

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given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches

  • trig - ,

    Area of a circle:

    A=r^2*pi

    Area of a sector:

    As=r^2*pi*(66°/360°)

    As=12.1^2*3.14159*0.18333

    As=146.41*3.14159*0.18333

    As=84.3245 in^2

  • trig - ,

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