Expression 187: polygon left parenthesis, left parenthesis, negative 2 , negative 9 , right parenthesis , left parenthesis, 5 , negative 9 , right parenthesis , left parenthesis, 5 , negative 4 , right parenthesis , left parenthesis, negative 2 , negative 4 , right parenthesis , right parenthesispolygon−2,−9,5,−9,5,−4,−2,−4