In the diagram, . Triangles P M N and Q S R are shown. The lengths of sides P N and R Q are congruent, the lengths of sides Q S
and P M are congruent, and the lengths of sides M N and R S are congruent. If QR = 20 in., RS = 7 in., and SQ = 24 in., what is PN? 3 in. 7 in. 20 in. 24 in.
