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5.2. Proving that Lines are Parallel. A. B. C. D. ACD is an exterior angle. A & B are remote interior angles. m ACD is greater than m A . m ACD is greater than m B. 2. 1. 3. 4. 5. 6. 8. 7. 1 2 PQ ║ RS PQR RSP 3 4 QR ║ PS - PowerPoint PPT Presentation
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5.2
Proving that Lines are Parallel
ACD is an exterior angle. A & B are remote interior angles.mACD is greater than mA.mACD is greater than mB
DCB
A
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3
1. 1 22. PQ ║ RS3. PQR RSP4. 3 45. QR ║ PS6. PQRS is a
parallelogram.
1. Given2. Alt. int. s → ║ lines.3. Given4. Subtraction Property.5. Same as 2.6. A 4-sided figure with both pairs
of opposite sides parallel is a parallelogram.
