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DubyaWords

Unit 2 Vocab

QuestionAnswer
Acute angle Angle between 0 degrees and 90 degrees.
Angle Two rays connected at their endpoints. The point where the connect is called a vertex.
Angle bisector Cuts an angle into 2 congruent angles.
Collinear points Points that lie on the same line.
Congruent angles Angles that have the same measure.
Congruent segments Two segments with the same length.
Conjecture A conclusion reached through inductive reasoning.
Coordinate Corresponds to a point on a number line.
Coplanar Points and lines in the same plane.
Counter-Example Enough to disprove a conjecture.
Inductive Reasoning Reasoning based on observed patterns.
Line Has no length, no width, or thickness. It extends without end in two directions.
Midpoint A point that divides a segment into two congruent segments. It bisects the segment.
Obtuse Angle Angle higher than 90 degrees.
Opposite rays Start at the same point... and go in opposite directions.
Parallel lines Coplanar lines that do not intersect.
Perpendicular lines Intersect to form right angles.
Plane A flat surface that has no thickness. It extends without end in all directions.
Point Has no length, width, or thickness, but has a position.
Postulate A statement accepted to be true without proof.
Ray Part of a line that consists of an initial point and all points on the line that lie on side of the initial point.
Right Angle Angle thats exactly 90 degrees
Segment A portion of a line between two points, called endpoints.
Skew lines Noncoplanar lines. Therefore, they are not parallel and do not intersect.
Space The boundless 3-dimensional set of all points.
Created by: KaiDubya
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