The minute hand of a circular clock is 21 cm long. How much area does the minute hand sweep in 1 hour (Take π = 3.14)
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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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Step-by-step explanation:
Area of Circle = Πr²
= 3.14 × 21 × 21
= 1384.74 cm²
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