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