Expression 3: polygon left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , right parenthesispolygonx1,y1
3
Hidden Label: left parenthesis, 3 minus "x" Subscript, 1 , Baseline , 3 minus "y" Subscript, 1 , Baseline , right parenthesis3−x1,3−y1
Label
4
Expression 5: polygon left parenthesis, 3 minus "x" Subscript, 1 , Baseline , 3 minus "y" Subscript, 1 , Baseline , right parenthesispolygon3−x1,3−y1