unknownn111111 unknownn111111
  • 13-12-2021
  • Mathematics
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pls answer pls plsplspls pls ​

pls answer pls plsplspls pls class=

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Аноним Аноним
  • 13-12-2021

πr²/2

22×7×7/7×2

77cm²

πr²/2×2

πr²

22/7×3.5×3.5

38.5cm²

77-38.5=38.5cm²

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