# the minute hand of a circular clock is 15cm long.how far does the tip of the minute hnd move in 1 hour.(take = 3.14)

the length of minute hand = radius of the clock = 15cm

Circum of clock = circum of circle = 2 x Pi x radius

= 2 x 3.14 x 15

= 30 x 3.14

=  94.2

therefore the clock's minute hand tip travels 94.2 cm in 1 hr

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In this question it is asked to find the perimeter/circumference of the circle/clock
∴ formula to be used 2πr
=2 x 3.14 x 15
=6.28 x 15
=94.2 m

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Zn
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Here's it

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12meter
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Circumference of circular clock=2?r
=2?3.14?15cm
=6.28?15cm
=94.2cm
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if the length and the breadth of a rectangle are doubled how many times the perimeter of the old rectangle will that of the new triangle be?
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In 1hour the clock will complete 1 rotation

Length of the minute hand =radius of clock=15cm

Circumference=2*pie*r
=2*3.14*15cm
=94.2

Therefore,
The tip travels 94.2cm in 1 hour
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the length of minute hand = radius of the clock = 15cm

Circum of clock = circum of circle = 2 x Pi x radius

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?= 2 x 3.14 x 15

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?= 30 x 3.14

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?= ?94.2 ?

therefore the clock's minute hand tip travels 94.2 cm in 1 hr
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In this question it is asked to find the perimeter/circumference of the circle/clock
??formula to be used 2?r?
=2 x 3.14 x 15
=6.28 x 15
=94.2 m

?
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the length of minute hand = radius of the clock = 15cm

Circum of clock = circum of circle = 2 x Pi x radius

= 2 x 3.14 x 15

=30 x 3.14

= 94.2

therefore the clock's minute hand tip travels 94.2 cm in 1 hr
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Sorryy
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