[list=1][*]Make a segment AB[br][/*][*]Using Perpendicular Line tool, make a line that is perpendicular to segment AB passing through A[br][/*][*]Same as step 2, make a line that is perpendicular to segment AB passing through B[br][/*][*]Using circle through point, make a circle where A is the center that is passing through B[br][/*][*]Where the circle crosses one of the lines, make a point of intersection C[br][/*][*]Using Parallel Line tool, make a line that is parallel to line AB passing through C[br][/*][*]Where the two lines cross, make a point of intersection D[br][/*][*]Make all the lines and circles disappear by disabling “show object”. Only points should be visible.[br][/*][*]Using polygon tool connect all the points thus creating a square ABCD[br][/*][/list]