Prove ABCD is a parallelogram.

First we can look at the word itself. (parallel)ogram. this means that the lines of the shape is parallel. Parallel lines are lines that are next to each other and have the same angle. Squares, rectangles, rhombuses, and parallelograms. As you can see in the picture, there are two lines. These two lines have the same angle, and are therefore parallel.

c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.

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