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### 16 Cards in this Set

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• Back
 These lines never touch parrell lines A line that intersects parrell lines is called _________. transversal this means opposite angles Vertical angles Tthis means the same in math terms congruent straight line 180 degree two lines intersect to make four right angles perpendicular lines lines that cross each other intersecting lines lines that go up and down vertical lines Any of the four angles formed between two straight lines intersected by a third straight line. interior angle any pair of angles that have the same relative position at each intersection where a straight line crosses two others corresponding angles Two angles whose sum is 90°. Complementary angles The angle or arc that when added to a given angle or arc makes 180° or a semicircle supplementary angle When a transversal intersects two lines alternate interior when a transversal intersects two lines alternate exterior a plane polygon which is both equilateral and equiangular. regular polygon a polygon whose interior angles are not equal and/or its sides are not equal in length irregular polygon