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28-03-2018
Mathematics

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sqdancefan sqdancefan

29-03-2018

The arc length (s) is given in terms of the radius by
s = rθ
10 cm = r*(29/180*π) radians
r = (10 cm)*(180/(29π)) ≈ 19.757 cm

d = 2r ≈ 2*19.757 cm ≈ 39.51 cm . . . . . . . matches selection G

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