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| A line is made up of points and has no thickness or width. |
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| A measureable part of line thats consits two points called endpoints and all of the points between them. |
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| A plane is a flat surface made up of points the has no depth and extends indefinitely in all directions. |
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| points that lie in the same plane. |
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| The intersection of two non collinear rays at a common endpoint. |
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| The point halfway between the endpoints of a segment. |
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| The line that divides something into two equal parts. |
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| A triangle in which all of the angles are acute angles. |
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| A triangle with an obtuse angle. |
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| An angle with a degree measure of 90. |
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Complementary angles.
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| Two angles with the measure to have a some of 90. |
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Supplementary angles.
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| Two angles with measures that have a some of 180. |
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| Two nonadjacent angles formed by two interesting angles. |
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| Two angles that lie in the same plane, have a common vertes and side but no interior points. |
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| A pair of adjacent angles whose non common sides are opposite rays. |
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| Lines that form right angles |
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| A closed figure formed by a finite number of coplanar segments celled sides such that the following conditions are met |
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| A polygon having 4 sides. |
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| A plane figure with five straight sides and five angles |
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| A plane figure with six straight sides and angles. |
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A plane figure with eight straight sides and eight angles
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| A polygon with ten angles and ten sides |
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| .A polygon of 12 angles and 12 sides |
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Concave & Convex.
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Concave: Curves inward.
Convex: Bulges outword. |
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Regular & Irregular
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Regular: All equal sides.
Irreqular: Non equal sides. |
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| A segment that connects nonconsecuive vertices of the polygon. |
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| A line bounding a plane figure. |
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| The sum of the lengths of the sides of a polygon. |
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