Taleelee09 Taleelee09

31-03-2017
Mathematics

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the circumference of a circle is 6 pi cm what is the length of an arc of 140 degree

the circumference of a circle is 6 pi cm what is the length of an arc of 140 degree class=

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Zythera Zythera

31-03-2017

Since the total circumference of the circle is 60 pi cm which passes around 360˚, the length of an arc of 140˚ will be equal to 140/360 = 7/18 times the total length:
l = (7/18) * 60 pi cm = 23.3 pi cm

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