原帖由 tomargom 于 2009-6-19 19:30 发表 1 M! w4 q$ K( Q# |* r- Z使劲猜! + X( K) _4 G- h/ k) g6 kThe # K9 i+ O; M( M \9 J
Square and the Triangle form within the circle, but there is an inner circle and an inner square, , C/ @. ?4 u# u8 R
as well as an outer square and an outer circle, which prove the fourth dimension ...