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26 Cards in this Set
- Front
- Back
Point
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A location in space having no dimensions
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Postulate 4
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If two planes intersect, then their intersection is a line
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Line
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a set of points that extends infinitely in two opposite directions
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Intersection
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the set of points that are in both figures. Two lines intersect in a point. A plane and a line intersect in a point
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Plane
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a flat surface that exists without end in all directions
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Supplementary angles
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Two angles whose measures add up to 180 degrees
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Postulate 1
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through any to points there is exactly one line.
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Bisector of an angle
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a ray that divides the angle into two congruent adjacent angles
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Complementary angles
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Two angles whose measures have a sum of 90 degrees
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A line segment
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a part of a line cosisting of two endpoints and all points that lie between them
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Straight angle
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Angles measues 180 degrees
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Acute angle
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Angle measures between 0-90 degrees
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Coplanar points
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points that lie in the same plane
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Vertical angles
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Two lines intersect the angles that are not adjacent to each other
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adjacent angle
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Two angles that have a common vetex and a common side, but no interior points in common
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Obtuse angle
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Angle measures etween 90-180 degrees
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Congruent angles
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have the same measure
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Right angle
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Angle measures exactly 9o degrees
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Postulate 2
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through any three noncollinear poinst, there is exactly one line
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Degree
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The size of an angle is measured with this unit
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Space
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the set of all points
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Coplanar points
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points that lie on the same line
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Postulate 3
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If tow points lie in a plane, then the line jioning them lies in that plane
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Angle
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the figure formed by two rays that have a common endpiont. The endpoint is called a vertex of the angle. Each ray formed a side of the angle.
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Congruent line segments
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have the samemeasure. The midpoint of a segment is thhe point that dividesthe segment into two conqruent segments.
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Perpendicular lines
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two lines that intersect to form equal adjacent right angles
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