The length of the minute hand of a clock is 14 cm. Find the area swept by the minute hand in 5 mins.
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Answer:
The area swept by the minute hand in 5 minutes =3154 sq.
Step-by-step explanation:
In 60 minutes, minute hand completes 3600 i.e., one rotation.
⇒ in 1 minute, minute hands completes 60360∘=6∘
Hence, in 5 minutes the angle covered is is 6×5=30o.
The angle of sector formed is 30o.
The area swept by the minute hand in 5 minutes=36030×π×14×14
Using π=722, we get
The area swept by the minute hand in 5 minutes =3154 sq. cm
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Answer:
154/3 sq
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