The length of minute hand of a circular watch is 20 cm. How much distance does tip of minute hand cover in 1 hour? ( π = 3.14).
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In 1 hour, minute hand completes one round means makes a circle.
Radius of the circle (r) = 20 cm
Circumference of circular clock = 2πr
= 2 x 3.14 x 20 = 25.6 cm
Therefore, the tip of the minute hand moves 25.6 cm in 1 hour.
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