The points A(4,-2), B(7, 2), C(0, 9) and D(-3, 5) form a parallelogram – InterviewSolution

1.	The points A(4,-2), B(7, 2), C(0, 9) and D(-3, 5) form a parallelogram. Find thelength of the altitude of the parallelogram on the base AB.
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