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13 February, 11:56

What is the degree measure of an arc 4 ft. long in a circle of radius 10 ft.?

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  1. 13 February, 13:56
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    The measure of the arc (S) given the angle it intercepted (A) and the radius is given by the equation,

    S = (A / 360°) x (2πr)

    Substituting the values to the equation above,

    4 ft = (A / 360°) x (2π) (10 ft)

    The value of A is 22.92°.
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