# Find the circumference of each circle for the given radius r or diameter d. Use pi=22/7 1.) r= 7 cm 2.) r=14 cm 3.) r=21/2 cm 4.) r=28/11 cm 5.) d=7 cm 6.) d=7/2 cm 7.) d=21/22 cm 8.) d=7/11 cm

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