■等面単体の体積(その367)

 n=8の展開図については確認せずに・・・

  P1P2=P2P3=P3P4=P4P5=P5P6=P6P7=P7P8=√8

  P1P3=P2P4=P3P5=P4P6=P5P7=P6P8=√14

  P1P4=P2P5=P3P6=P4P7=P5P8=√18

  P1P5=P2P6=P3P7=P4P8=√20

  P1P6=P2P7=P3P8=√20

  P1P7=P2P8=√18

  P1P8=√14

     =P2P3=P3P4=P4P5=P5P6=P6P7=   =√8

  P1P3=   =P3P5=P4P6=   =P6P8=√14

  P1P4=P2P5=   =P4P7=P5P8=√18→3番目,後から3番目はNG*

     =P2P6=P3P7=   =√20

  P1P6=P2P7=P3P8=√20

  P1P7=P2P8=√18

  P1P8=√14

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