Question

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.

Answer 1

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Answer 2

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..

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