19-03-2018
Mathematics

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prosborough198p2ub41 prosborough198p2ub41

19-03-2018

hello!

here we have arc length is

s=r*theta(in radians)

so we have

s=(4.5cm)(pi/2)= 9pi/4 = 7.1cm

hope this helps. any questions please just ask. thank you kindly

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