1.2-1.5 Flashcards
has a location and no size, represented by a dot
point
a straight path that has no thickness and extends forever
line
a flat surface that has no thickness and extends forever
plane
points that lie on the same line are
collinear
points that lie on the same plane are
coplanar
a part of a line consisting of two points and all points between them
line segment
the beginning and end of a line segment, or the beginning of a ray
endpoints
a part of a line that starts at one endpoint and extends forever in one direction
ray
two rays with a common endpoint that form a line
opposite rays
a math rule that is accepted as true
postulate, or axiom
the length between any two points with coordinates a and b is found by the equation
|a-b|=AB
segments that have the same length
congruent segments
a point in the middle of a segment
midpoint
Segment addition postulate formula
AB+BC=AC
a segment, line, point, plane, etc that cuts a segment in half
bisector
