Read the proof. given: m∠h = 30°, m∠j = 50°, m∠p = 50°, m∠n = 100° prove: △hkj ~ △lnp statement reason 1. m∠h = 30°, m∠j = 50°, m∠p = 50°, m∠n = 100° 1. given 2. m∠h + m∠j + m∠k = 180° 2. ? 3. 30° + 50° + m∠k = 180° 3. substitution property 4. 80° + m∠k = 180° 4. addition 5. m∠k = 100° 5. subtraction property of equality 6. m∠j = m∠p; m∠k = m∠n 6. substitution 7. ∠j ≅ ∠p; ∠k ≅ ∠n 7. if angles are equal then they are congruent 8. △hkj ~ △lnp 8. aa similarity theorem which reason is missing in step 2? cpctc definition of supplementary angles triangle parts relationship theorem triangle angle sum theorem