Y by Adventure10
Let
be a given convex quadrilateral in a plane. Prove that there exist a line with four different points
on it and a square
such that
lies on both line
and
lies on both line
and
lies on both line
and
lies on both line
and 















This post has been edited 1 time. Last edited by Henry_2001, Jul 31, 2019, 9:49 AM