EXTENDED RESPONSE Theorem 8.5 states that if a quadrilateral is a parallelogram, then
Chapter 8, Problem 8.3.37(choose chapter or problem)
EXTENDED RESPONSE Theorem 8.5 states that if a quadrilateral is a parallelogram, then its consecutive angles are supplementary. Write the converse of Theorem 8.5. Then write a plan for proving the converse of Theorem 8.5. Include a diagram.
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