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21 Cards in this Set
- Front
- Back
point |
they have no size. In a figure, it is represented by a do. they are named by capital letters. |
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line |
they extend indefinitely and have no thickness or width. In a figure, its shown with arrows at each end. They are usually named by lower case script letters or by writing capital letters for two points on the line, with a double arrow over the pair of lines. |
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plane |
They can be thought of as flat surfaces that extend indefinitely in all directions and have no thickness. In a figure, its often represented by a parallelogram. usually named by a capital script letter or by three non-collinear points. |
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space |
a boundless 3d set of all points |
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postulate |
a statement that describes a fundamental relationship between the basic terms in geometry, they are accepted as true without proof. |
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theorem |
a statement, usually of a general nature, that can be proved by appeal to postulates, definitions, algebraic properties, and rules of logic. |
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segment bisector |
a segment, line, or plane that intersects a segment at its midpoint
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mid point |
a point M is the _______ of a segment PQ if M is between P and Q, and PM = MQ
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perpendicular lines |
Two lines that intersect to forma right angle |
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complementary lines |
Two angles whose degree measures have a sum of 90 |
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supplementary lines |
Two angles whose degree measures have a sum of 180
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adjacent angels |
two angles in the same plane that have a common vertex and a common side, but no common interior points |
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vertical angels |
Two nonadjacent angles formed by two intersecting lines. |
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right angles |
An angle whose degree measure is 90
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acute angles |
An angle whose degree measure is less than 90 |
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obtuse angles |
An angle with degree measure greater than 90 and less than 180
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linear pair |
A pair of adjacent angles whose non common sides are opposite rays. |
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collinear |
points that lie on the same line |
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non collinear |
points that don't lie on the same line
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coplanar |
points that lie on the same plane |
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non coplanar |
point that don't lie on the same plane |