Line NM is 9 and the measure of angle MLN is 58 degrees. This is because both triangles are equal in length, size, and angle measures. The triangle to the right is just rotated and reflected.
Since the triangle is congruent the angles equal each other. Angles: P=N Q=M R=L Which means line segment NM is equal to PQ (9 units) Angle MLN is equal to angle QRP (58 degrees)
