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1
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A polygon with the same number of sides, and all corresponding sides and interior angles are congruent.
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2
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Two lines that intersect to form a 90 degree angle.
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3
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A figure having all its sides equal.
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4
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Angles formed outside parallel lines by a third line that intersects them.
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5
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Angles formed between parallel lines by a third line that intersects them.
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6
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A polygon with all sides and all angles equal.
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7
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One of two opposite and equal angles formed by the intersection of two lines.
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8
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Two lines on a line that never meet. They are always the same distance apart.
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11
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Either of two angles that added together produce an angles of 180 degrees.
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