The minute hand of a circular clock is 15cm. How far does the tipof the minute hand move in 1hr
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in hour there are 60 minutes
so the circumference(distance travelled by minute hand) = 2Πr
in hour , the minute hand will complete one rotation
so the distance travelled = 1× 2 × Π × 15. { radius is 15cm}
so distance travelled is 5652 cm
so the circumference(distance travelled by minute hand) = 2Πr
in hour , the minute hand will complete one rotation
so the distance travelled = 1× 2 × Π × 15. { radius is 15cm}
so distance travelled is 5652 cm
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2x 3.14x15
30x3.14
94.2 cm.
We have to use pi here
30x3.14
94.2 cm.
We have to use pi here
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