Length of the minute hand is 21cm.Find the area swept by it in 15 minutes​

1 thought on “Length of the minute hand is 21cm.Find the area swept by it in 15 minutes​”

1. Answer:

   1. the angle swept in 15 minutes should be 90°
   2. then area of a sector should be (90÷360)×π×21×21
   3. =346.5 cm^2

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