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Circumference of a Circle

Find the dist...

Question

Find the distance covered by a 7cm long minute hand of a clock in an hour.

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Solution

In 1 hour, minute hand completes one round means makes a circle.
The radius of the circle (r) = 7 cm
Circumference of circular clock = 2πr
2×22/7×7=44 cm
Therefore, the tip of the minute hand moves 44cm in 1 hour.

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