the lenghth of the mintute hand of the clock is 7cm.find the area of swept by the minute hand in 5 min
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Answer:
15.86 cm²
The Area swept by minut hand in 1 hour is 153.86 cm².
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Step-by-step explanation:
r = length of minute hand = 7 cm
angle swept by minute hand
in 60 minute = 360°
in 1 minute = 360/60 = 6°
in 5 minutes = 6°× 5 = 30°
area swept = angle ÷ 360° × π ×r×r
= 30 ÷ 360 × 22÷7 × 7×7
= 12.83 vm sq.
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