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Ch. 1 Geometry Terms

QuestionAnswer
An angle whose measure is less than 90 degrees Acute angle
Two rays with the same endpoint Angle
A ray that divides an angle into two congruent angles Angle Bisector
Points that lie on the same line Collinear points
Angles with the same measure Congruent angles
Segments with the same length Congruent segments
A conclusion reached by inductive reasoning Conjecture
On the same plane Coplanar
A statement that proves another statement false Counterexample
Reasoning based on patterns Inductive reasoning
An angle whose measure is more than 90 degrees Obtuse angle
Lines on the same plane that will never intersect Parallel lines
Planes that will never intersect Parallel planes
A segment, line, or ray that is perpendicular to another segment at its midpoint. Perpendicular bisector
Lines that intersect to form right angles Perpendicular lines
A flat surface that extends without end in all directions Plane
A statement that is accepted as true Postulate
A part of a line consisting of one endpoint and all the points to one side of the endpoint Ray
An angle with a measure of 90 degrees Right angle
A part of a line consisting of two endpoints and all the points in between Segment
Lines not on the same plane that will never intersect Skew lines
An angle with a measure of 180 degrees Straight angle
Collinear rays with the same endpoint Opposite rays
Created by: jcgsville
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