Question Video: Determining the Properties of a Parallelogram

Which of the following statements must be true about a parallelogram? [A] It has four sides of equal length. [B] It has four congruent sides. [C] It has four right angles. [D] It has one pair of parallel sides. [E] It has two pairs of parallel opposite sides.

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The figure below is a parallelogram with two angles given in terms

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