Reason Given 1. 2. 3. 4. 5. Statement 1 ABCD is a parallelogram, AC – BD. 2. AD BC 3. CD CD 4 AADC # ABCD 5. LADC & LBCD 6 LADC ABC LBCD e DAB 7 LABC ALDAB 8. MLABC + MLDAB 180° 2mLABC 180° 10. MZABC 90° 11. ZABC is right angle 12. MLABC MZDAB MLADC = mBCD 13. ABCD is a rectangle Substitution 6. 7. 8. Multiplication Property of Equality 9. 10.
