第267章 族人大概三亿多-《掐指一算:不可,那是你姐!》

  Ϊ𾪵Īڽ峤Хˡ

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  ƣȴԼ֮ۿű˾Ȼܲ𾪣

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  ˱⻰ʵЩԺһۺȻûоȷҲ﷽Բ

  ǰ﷽Բ

  аզ࣬๫ʽڼټ㡣

  μ㣬߳Ϊ1 Լ 500 ף1 Լ ף 5000 ǧסôԼΪ 2500 ƽǧס

  Բμ㣬뾶ΪԲʽ S = r2 S ʾ ȡ 3.14r ʾ뾶ԼΪ 7850 ƽǧס

  ǰĵ½Լ 960 ƽǧס

  7850 ƽǧ׵ĻԼ½ 8.18

  ˸İͼż˿ڣ

  ̫˷ԴˣֻҪܿٳɷֵ׵ũԺӾȥɡ

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  ֮󣬽ХģIJ䣬Ҳ˭ʸģҪ˵IJ䣬Dzϵһ쾳ҽְſԡ

  ԵͷȻǴйǧIJ䣬ȹ̰λƵĹֱǵˮ©

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