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March 30, 2017

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A clock has a minute hand10 inches long. What is the distance traveled by the tip of the minute hand in 1 day?

  • Math - ,

    2 pi *10 inches per hour

  • Math - ,

    one day is 24 hours two rotations on the clock. Each rotation is equal to 2 pi. then it will be 2 times 2 times pi.

    apply the formula with radius equal to 10 inches:
    S = r * central angle in radians
    S = 10 * 4 * pi
    S = 125.6 inches

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