Robin buys a round wall clock. The radius of the clock is 15 cm. What is the circumference of the clock?
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Answer
In 1 hour, minute hand completes one round means makes a circle.
Radius of the circle(r)=15cm
Circumference of circular clock=2πr
=2×3.14×15=94.2cm
Therefore, the tip of the minute hand moves 94.2cm in 1 hour.
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Answer:
if r = 15
then, circumference = 2πr
2*22/7*15 = 94.29 approximately.
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