Expression 7: polygon left parenthesis, "O" , "Q" , right parenthesispolygonO,Q
7
Expression 8: polygon left parenthesis, "O" , "P" , right parenthesispolygonO,P
8
Expression 9: StartFraction, distance left parenthesis, "O" , "Q" , right parenthesis Over distance left parenthesis, "O" , "P" , right parenthesis , EndFractiondistanceO,QdistanceO,P