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प्रश्न
The minute hand of a circular clock is 15 cm long. How far does the tip of the minute hand move in 1 hour. (Take π = 3.14)
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उत्तर
Distance travelled by the tip of minute hand = Circumference of the clock
= 2πr
= 2 × 3.14 × 15
= 94.2 cm
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