the length of the minute hand of a clock is 3.5cm .find the area swept by minute hand in 30 minutes
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length= 14 cm
angle= 5 * 6 = 30 degree {because, angle swept in 1 min = 60/360 = 6 degree}
area swept = 30/360 * 22/7 * 14 * 14
= 1/12 *22 * 2 * 14
= 154/3
= 51.33 cm^2
angle= 5 * 6 = 30 degree {because, angle swept in 1 min = 60/360 = 6 degree}
area swept = 30/360 * 22/7 * 14 * 14
= 1/12 *22 * 2 * 14
= 154/3
= 51.33 cm^2
sristy85:
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πr^2 /2 ..
22/7 *3.5*3.5/2
19.25 is u r answer
hope this helps you
pls
mark
as
brainlliest
answer ..
22/7 *3.5*3.5/2
19.25 is u r answer
hope this helps you
pls
mark
as
brainlliest
answer ..
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