Question: answer both sides . Given: ABCD is a parallelogram. Prove: ZA G LC (A similar proof shows that ZB ZD.) Reasons Statements 1. 1. ABCD

answer both sides .

Given: ABCD is a parallelogram. Prove: ZA G LC (A similar proof shows that ZB ZD.) Reasons Statements 1. 1. ABCD is a parallelogram. 2. 2. Draw DB. 3. AB DC, AD BC 3. 4. Alternate Interior Angles Theorem 5. 5. Reflexive Property of Congruence 6. 6. ASA Triangle Congruence Theorem 7. 7. Statement & 1 Given Reason Bank 7S LA = LC 4 LADB = LCBD, LABD = LCDB 2 Through any two 7R CPCTC points, there is 5 DB = DB exactly one line. 6 4 ABD =A CDB 3 Definition of parallelogram

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