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geomatry vocab

vocabulary

termDefinition
acute angle Less than 90 degrees.
angle 2 rays that are connected at their endpoints.
angle bisector Ray that divides an angle into congruent (=) angles.
collinear points Points that lie on the same line are collinear points.
congruent angles Angles with the same measures.
congruent segments 2 segments with the same length.
conjecture A conclusion reached by using inductive reasoning.
coordinate 2 axis meet at the origin.
coplanar points and lines in the same plane.
counterexample A perticular example or instance of the statement that makes the statement false.
inductive reasoning Is a type of reasoning that reaches conclusions based on a pattern of specitic examples or pasr events.
line Has length, but no width or thickness. It extends without end in 2 directions
midpoint A point that divides a segment into two congruent segments.
obtuse angle More than 90 degrees.
opposite rays Starts at the some point... anf go in opposite directions.
parallel lines Coplanar lines that do not intersect.
perpendicular lines Lines that 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 position.
postulate A statement accepted to be true without proof.
ray A part of a line that consists of an initial point and all points on the line that lie on 1 side of the initial point.
rigth angle 90 degree angle.
segment Is a pare of a line consisting of two points.
skew lines Noncoplaner line. Therefor they are not parallel and do not intersect.
space Is the boundless 3-d set of all points.
Created by: aaren
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