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20 Cards in this Set
- Front
- Back
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angle whose measure is between 0 and 90.
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acute angle
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a ray that divides an angle into two congruent angles.
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angle bisector
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points lie on the same line
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Collinear points
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angles that have the same measure
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Congruent angles
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segments that have the same length
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Congruent segments
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a conclusion reached by using inductive reasoning.
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Conjecture
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The coordinate of a point is its distance and direction from the origin of a number line. The coordinates of a point on a coordinate plane are in the form (x, y), where x is the x-coordinate and y is the y-coordinate.
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Coordinate(s) of a point
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figures in the same plane
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Coplanar figures
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a statement is a particular example or instance of the statement which makes the statement false.
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Counterexample
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type of reasoning that reaches conclusions based on a pattern of specific examples or past events.
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Inductive reasoning
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angle whose measure is between 90 and 180.
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Obtuse angle
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2 lines lie in the same plane and do not intersect. symbol ||
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Parallel lines
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planes that do not intersect
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Parallel planes
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a line, segment, or ray that is perpendicular to the segment at its midpoint.
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Perpendicular bisector
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lines that intersect and form right angles.
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Perpendicular lines
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a flat surface that has no thickness, contains many lines and extends without end in the directions of its lines.
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Plane
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axiom, is an accepted statement of fact.
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Postulate
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the part of a line consisting of one endpoint and all the points of the line on one side of the endpoint
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ray
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angle whose measure is 90
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right angle
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part of a line consisting of two points, called endpoints, and all points between them.
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segment
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