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GEOMETRY 1 REVIEW

TermDefinition
point A location, no size, and represented by a dot/capital letter
line series of point, extend opposite directions, and infinite
plane flat surface, no thickness, and extends w/o end in direction of lines
segment The part of a line that consists of 2 endpoints and all the points between them
collinear points on the same line
noncollinear points not on the same line
coplanar points that lie on the same plane
noncoplanar points that do not lie on the same plane
postulate a statement that is assumed to be true
protractor A tool used to measure and draw angles.
Segment Addition Postulate AB+BC=AC
Angle Addition Postulate for any angle, the measure of the whole is equal to the sum of the measures of its non-overlapping parts
protractor postulate Given any angle, the measure can be put into one-to-one correspondence with real numbers between 0 and 180.
midpoint formula (x₁+x₂)/2, (y₁+y₂)/2
distance formula d = √[( x₂ - x₁)² + (y₂ - y₁)²]
Created by: niya.777
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