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The length of a minute hand of a wall clock is 7 cm. What is the area swept by it in 30 minutes​
  • a)
    50 cm2
  • b)
    35 cm2
  • c)
    77 cm2
  • d)
    63 cm2
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The length of a minute hand of a wall clock is 7 cm. What is the area ...
We know that if the minute hand is moved for 30 minutes then it has moved half of the clock
therefore Area swept by it =1/2×22/7×r²

1/2×22/7×7×7
11×7
77cm²
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Community Answer
The length of a minute hand of a wall clock is 7 cm. What is the area ...
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The length of a minute hand of a wall clock is 7 cm. What is the area swept by it in 30 minutesa)50 cm2b)35 cm2c)77 cm2d)63 cm2Correct answer is option 'C'. Can you explain this answer?
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