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maths

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I will be greatfull if you help me to solve the below problem:

The minute hand of a clock is 12cm long.
Find the area of the surface of the clock described by the minute hand in 35min.

  • maths -

    270

  • maths -

    total area = π(12^2) = 144π

    area covered in 35 minutes = (35/60)(144π)
    = 84π
    = appr. 264 cm^2

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