Question

Complete the proof to show that ABCD is a parallelogram.

Answer 1

In the proof given, BC║AD and CD║BA because: B. slopes of opposite sides are equal.

What is the Slope of Parallel Lines?

If two lines are parallel, they will have the same slope value,.

Slope = rise/run.

Slope of BC = rise/run = -2/5

Slope of AD = -2/5

Slope of BA = rise/run = -6/1 = -6

Slope of BA = rise/run = -6/1 = -6

Therefore, we can conclude that BC║AD and CD║BA because: B. slopes of opposite sides are equal.

Learn more about the slope of parallel lines on:

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