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by chayanika » Mon Nov 03, 2008 5:07 am
Length of Arc AB = (126/360)*2*pie*8

The answer is option (b) 5.6 *pie
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by earth@work » Mon Nov 03, 2008 10:08 am
length=radius*Ѳ, where Ѳ=(angle degree)∏/180degree
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