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The length of a minute hand of a clock is 14cm.Find the area of swept by the minute hand in 5 minutes. |
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Answer» 51.28 cm^2Step-by-step explanation:swept by minute hand in 60 minutes = 360 degree in 1 minute swept = 360/60 = 6 in 5 minutes swept = 6×5= 30 degree Now area swept by minute hand in 5 minutes = pie r^2 × pie/6) / 2pie = r^2 pie/ 12 = 196 × 3.14/12 = 51.28 cm^2 |
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