A wall clock is hang in a classroom whose minute hand is 14cm long. How much area swept by the minute hand during the break time that starts at 10:05am and ends at 10:35am
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Time swept by minute hand = 10:35-10:05 = 30 mins
30 min= half of circular clock = semicircle
Area swept = 1/2πr² = 1/2*22/7*14² = 308 cm²
30 min= half of circular clock = semicircle
Area swept = 1/2πr² = 1/2*22/7*14² = 308 cm²
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