Geometry Vocab flashcards

Terms	Definitions
plane	a flat surface of points that goes on forever in all directions
complementary angles	two angles whose sum measures 90 degrees
line segment	an infinite number of points that has two distinct end points
supplementary	two angles whose sum measures 180 degrees
ray	an infinite set of points that starts at a point and goes on forever
obtuse angle	an angle whose measure is greater than 90 degrees and less than 180
bisect	to cut into two congruent parts
line	an infinite number of points that goes on forever in both directions
acute angle	an angle whose measure is greater than 0 degrees and less than 90 degrees
right angle	an angle formed by two perpendicular lines, the measure of which is 90 degrees
straight angle	an angle whose measure is 180 degrees
vertex	the point of intersection of the two rays that form the sides of the angle
angle	a geometric figure formed by two rays that have a common endpoint
collinear	points that lie on the same line
coplanar	any three or more points that lie in the same plane
perpendicular	lines that intersect to form right angles
congruent	having the same size and shape
point	a location in space (it has no dimensions)
midpoint	The point that divides a segment into two congruent segments.
intersect	to meet at a point

Quizlet