isometries of the plane wikipedia isometries of the plane isometries of the plane 英語版 英語版 isometries of the plane http://en.wikipedia.org/wiki/Euclidean_plane_isometry isometries of the plane Euclidean plane isometries isometries of the plane Euclidean plane isometries English isometries of the plane isometry (en) isometries of the plane isometries of the plane isometries of the plane