Part 2 Proving a Quadrilateral is a Parallelogram (15 points)
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More Practice
Use each method at least once to determine if the qaudrilateral is a parallelogram. [br]For each problem, identify the method you are using and then state if the [br]quadrilateral is or is not a parallelogram. Justify your answer with your findings.
1. A(-8,1); B(-3,6); C(7,4); D(2,-1)
2. A(-1,6); B(5,9); C(0,2); D(-8,-2)
3. A(-2,-9); B(0,-5); C(6,-3); D(4,-7)