Given: ∠P and ∠R are right Angle's M is the midpoint of PR Prove: ∠N ≅ ∠Q1. ∠P ≅ ∠R Given that both are right angles 2. PM ≅ RM Because M is the midpoint of PR 3. ∠PMN ≅ ∠RMQ Vertical angles 4. ᐃNPM ≅ ᐃQMR Angle-side-angle (steps 1,2,3) 5. ∠N ≅ ∠Q Corresponding parts of congruent triangles. Edwin