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geometry chapter 1

for honors geo. ch 1 vocab

point location, has no size
line set of points extending in opposite direction without end
plane flat surface, has no thickness
space the set of all points
collinear points points that lie on the same line
coplanar points points that lie on the same plane
segment part of a line with 2 end points and all points in between
ray part of a line consisting of 1 endpoint and all points on 1 side of an endpoint
opposite rays 2 collinear rays with the same endpoint
congruent segments 2 segments with the same length
midpoint point that divides a segment into 2 congruent parts
angle 2 rays with the same endpoint
acute angle less than 90
obtuse angle larger than 90, but less than 180
right 90
straight 180
congruent angles 2 angles with the same measure
vertical angles 2 angles whose sides are opposite rats
adjacent angles 2 angles with a common side, common vertex and no common interior points
complementary angles 2 angles where some =90
supplementary angles 2 angles whose sum=180
Created by: yurasitsk6