Hello people.....Hope your day is going well...Well please answer this question if you know...The minute hand of a clock is 14 cm. Calculate the area swept in 20 minutes.
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lakhwanus009:
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answer of this question is
MINUTE HAND LENGTH (R) = 14 cm
AREA SWEPT IN 20 MIN =?
SWEPT BY MINUTE HAND IN 1 HOUR = 360°
SWEPT BY MINUTE IN 1 MINUTES = 360/60=6°
SWEPT BY MINUTE HAND IN 5 MINUTES =6×5=30°
SO,NOW WE HAVE,
θ=30° , r=14cm
AREA SWEPTBY MINUTE HAND= AREA OF SECTOR..
AREA OF SECTOR = π r square θ/360°
=22/7 ×14×14/360 × 30
= 154 /3 cm square
hope this will help u..
mark me as brainliest if u like plzzz..
#otaku
MINUTE HAND LENGTH (R) = 14 cm
AREA SWEPT IN 20 MIN =?
SWEPT BY MINUTE HAND IN 1 HOUR = 360°
SWEPT BY MINUTE IN 1 MINUTES = 360/60=6°
SWEPT BY MINUTE HAND IN 5 MINUTES =6×5=30°
SO,NOW WE HAVE,
θ=30° , r=14cm
AREA SWEPTBY MINUTE HAND= AREA OF SECTOR..
AREA OF SECTOR = π r square θ/360°
=22/7 ×14×14/360 × 30
= 154 /3 cm square
hope this will help u..
mark me as brainliest if u like plzzz..
#otaku
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