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A polygon with four equal sides and four right angles

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Two angles are vertical if their sides form a pair of two opposite rays.

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Has two dimensions. it is represented by a shape that looks like a floor or wall, but it extends without end

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A point that divides the segment into two congruent segments

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A portion of a line that consists and one endpoint and extends in any particular direction 

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Lines that do not intersect and are complainer 

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Has one dimension. Represented by a line with two arrowheads

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Has no dimension it is represented by a do