8 R81.132070701940850.75606780678075303771395031905230396 0.18989 4 8 6 2 5 1 7 6 6 0 2 0 8 R×8 1.132 9 0.707 5 0.194 5 0.185 1 0.756 3 0.678 1 0.678 1 0.753 5 0.377 3 1.395 0 0.319 0 0.523 5 0.396 4 0.1898 0.6576