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find, to the nearest tenth of an inch, the length of the arc intercepted by a central angle of (4pi)/3 radians if a radius of the circle is 22 inches long

  • trig - ,

    C = 3.14D = 3.14(2*22) = 138.16 in. =
    Circumference of circle.

    L = 4pi/3*1/2pi * 138.16 = 92.1 in. =
    Lengh of arc.

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