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  • 23-03-2017
  • Mathematics
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Аноним Аноним
  • 23-03-2017
64 x 64 = 4160
1/2 (3.14 x 32^2) = 1607.68

4160 - 1607.68 = 2552.32

answer:
area of black's section = 2552.32
area of white's section = 1607.68


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