Shall I quote a historically puolpar ,which is propagated as an impossible one in the words of a famous auther .There is no ruler and compass construction procedure whereby a) an arbitary angle can be trisected,b) a square can be constructed with area equal to that of a given circle c)a line segment with length rube root of 2 ,d)Duplication of a cube.he continued...Proving these negative statements involves a lot of higher mathematical chalenges.