niceygraham200ov46fq
niceygraham200ov46fq niceygraham200ov46fq
  • 04-05-2018
  • Mathematics
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choixongdong
choixongdong choixongdong
  • 04-05-2018
C of circle P = 2πr = 2π(7) = 14π
C of circle R = πd = 8π

14π - 8π = 6π

answer
6π
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