3 years ago

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

1 answer:

3 0

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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