represented by a dot and letter
point
connected set of infinite points extending forever
line
infinite points connected to make a flat surface
plane
points on the same line
collinear points
points not on the same line
non-collinear points
part of a line that has one end point and goes infinitely in the other direction
ray
two rays with a shared endpoint called a vertex
angle
unit of measurement for an angle
degree
an angle equal to 90 degrees
right angle
angle less that 90 degrees
acute angle
an angle more that 90 degrees
obtuse angle
an angle equal to 90 degrees
straight angle
meaning same size and shape
congruent
a ray that splits an angle in two equal pieces
angle bisector
a line/ray/line segment that splits a line segment in two equal pieces
segment bisector
