the length of a minute hand of a clock is 14 cm. Find the area swept by the minute hand in 10 minutes.?
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total 60 minutes make a circle
So 10 minutes means 6th part of circle
minute hand is 14 cm long
minute hand is radius as it connects centre to its imaginary circumference
so
area of circle is πr^2
= 22/7 X 14 X 14
= 616
for the minutes
area swept
= 616/6
= 102.6666666.
=103 ( approx )
So 10 minutes means 6th part of circle
minute hand is 14 cm long
minute hand is radius as it connects centre to its imaginary circumference
so
area of circle is πr^2
= 22/7 X 14 X 14
= 616
for the minutes
area swept
= 616/6
= 102.6666666.
=103 ( approx )
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5
hope the answer is correct
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