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Geometry Chapter 1


Distance formula (number line) AB= I b-a I
Distance formula (coordinate plane) d equals the square root of x2-x1 squared plus y2-y1 squared
Pythagorean Theorem c squared equals a squared plus b squared
Midpoint formula (number line) a+b/2
Midpoint formula (coordinate plane) x1+x2/2, y1+y2/2
points on the same line collinear
points on the same plane coplaner
boundless, 3-dimensional set of all points, lines, and planes space
measurable part of a line that consists of 2 endpoints and all the points between them line segments
point M is between points p and q if and only if (IFF) p,q, and m are collinear and PM+MQ=PQ betweenness
segments that have the same measure congruent segments
point on a segment that divides a segment into 2 congruent segments midpoint
any segment line or plane that intersects a segment at its midpoint segment bisector
part of a line ray
formed by two noncollinear rays that have a common endpoint angle
the common endpoint vertex
a ray that divides an angle into two congruent angles angle bisector
angle that measures less than 90 degrees acute angle
angle that measures more than 90 degrees obtuse angle
angle that is 90 degrees right angle
Created by: holmesem