原帖由 tomargom 于 2009-6-19 19:30 发表 1 p! V; t3 R8 h) W5 X* a( Y使劲猜! , B+ O% d5 \" z7 L6 d
The ( L8 r" ]) O7 ISquare and the Triangle form within the circle, but there is an inner circle and an inner square, 3 W! P( F; q; b& e5 U, b
as well as an outer square and an outer circle, which prove the fourth dimension ...