The minute hand of a clock is 15 cm long how far does the tip of the minute and travel in 20 minutes

Question

The minute hand of a clock is 15 cm long how far does the tip of the minute and travel in 20 minutes

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Liliana 1 week 2021-09-07T23:56:25+00:00 1 Answer 0

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    2021-09-07T23:58:17+00:00

    20 mins means the hand moves 120 degrees around the clock.

    The formula to find the arc length is 2pi×r×a/360

    2×pi×15×1/3=30pi×1/3=10pi

    so i think the answer would be 10 pi cm

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