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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Saurav

M.SC MATHS from JAMIA MILLIA ISLAMIA, NEW DELHI, 6+Years of Teaching Experience.

r=15cm Time =1 hr The tip of the min hand makes 1 full revolution in 1 hr. We will find the circumference ( distance moved in 1 revolution ) C=2(π)r=2×3.14×15=94cm
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C language Faculty (online Classes )

Radius of the circular clock (r) = 15 cm Circumference of the circular clock = 2πr = 2 × 3.14 × 15 cm = 94.2 cm Therefore, the tip of the minute hand moves 94.2 cm in 1 hour.
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"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

In 1 hour, the minute hand makes 1 full circle. Distance moved = Circumference = 2πr = 2 × 3.14 × 15 = 94.2 cm
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"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

In 1 hour, the minute hand completes 1 full circle. Distance moved = Circumference = 2πr = 2 × 3.14 × 15 = 94.2 cm Answer: 94. 2 cm
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Online Mathematics tutor with 8 years experience(Online Classes for 10th to 12th)

Radius of the circular clock (r) = 15 cm Circumference of the circular clock = 2πr = 2 × 3.14 × 15 cm = 94.2 cm Therefore, the tip of the minute hand moves 94.2 cm in 1 hour.
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Find the cost of polishing a circular table-top of diameter 1.6 m, if the rate of polishing is ` 15/m2. (Take (π) = 3.14)
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