Expression 13: polygon left parenthesis, left parenthesis, negative 2 , 2 , right parenthesis , left parenthesis, 5 , 2 , right parenthesis , left parenthesis, 5 , negative 2 , right parenthesis , left parenthesis, negative 2 , negative 2 , right parenthesis , right parenthesispolygon−2,2,5,2,5,−2,−2,−2