C-07-Q130mediumsingle_mcqThe bisector PQPQPQ of segment MNMNMN at point QQQ with ∠PQN=45∘\angle PQN = 45^\circ∠PQN=45∘ and MN=7MN = 7MN=7 cm gives MQMQMQ equal to—a222 cmb3.53.53.5 cmc444 cmd cm