angles that add to 180 degrees
supplementary
a line/ray/line segment that splits a line segment in two equal pieces
segment bisector
part of a line that has one end point and goes infinitely in the other direction
ray
an angle more that 90 degrees
obtuse angle
two rays with a shared endpoint called a vertex
angle
angle less that 90 degrees
acute angle
unit of measurement for an angle
degree
connected set of infinite points extending forever
line
represented by a dot and letter
point
meaning same size and shape
congruent
infinite points connected to make a flat surface
plane
points not on the same line
non-collinear points
an angle equal to 90 degrees
right angle
a ray that splits an angle in two equal pieces
angle bisector
angles that have a shared ray
adjacent
points on the same line
collinear points
adjacent angles that make a straight line
linear pair
angles that add to 90 degrees
complementary angles
an angle equal to 90 degrees
straight angle