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acute angle angle smaller than 90 degrees
congruent angles angles that are the same size
midpoint the point in the middle of the line
coplanar points on the same plane
perpendecular lines that connect
ray a line with 1 endpoint
space open area
angle a measurement of degrees
congruent segments segments that are the same legnth
countereexample an example to prove a conjecture wrong
obtuse angle angle larger than 90 degrees
plane a flat surface that has no thickness
right angle an angle exactly 90 degrees
angle bisector an angle that connects through 2 points
conjecture an educated guess
inductive reasoning is based on obeserved patterns
opposite rays 2 rays that go opposite ways
point a dot on a plane or line
segment a line with 2 endpoints
collinear points points that are linear
coordinate a point on line or graph
parallel lines lines that never connect
postulate rules
skew lines lines on opposite planes
Created by: jayf