Complete the Proof Statements Reasons 1. ABCD is a AC BD given 2. AD BC 3. 4. LABC = ABAD 5 ZDAB ZCBA 6. ABCD is a rectangle 7. 8. 1. 4 5 9 6. 7. Congruent supp. angles are right angles 8. Given: ABCD is a parallelogram AC BD Prove: ABCD is a rectangle SSS Triangle Congruence Theorem mZDAB=90° m/CBA=90° Reflexive Property of Congruence ZDAB and ZCBA are supplementary Definition of Rectangle A CPCTC If the quad is a both pairs of opposite sides are congruent Consecutive angles in a are supplementary AB = AB C B

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