geometry Flashcards
space
extends in all directions indefinitely 3 demential (length, width, height)
plane
flat surface that extends indefinitely 2 demential (length, width)
line
set of points extending indefinitely in two directions
point
no length, no width, no height
has a location
line segment
piece of a line with two end points
ray
a line with one end point
angle
two rays that share the same endpoint
vertex
common endpoint of two rays
degrees
measurement of angle
straight angle
measures 180 degrees
right angle
measures 90 degrees
acute angle
measures between 0 - 90 degrees
obtuse angle
measures betweens 90 - 180 degrees
complementary angles
two angles that have the sum of 90 degrees
each angle is complement of the other
supplementary angles
two angles that have the same of 180 degrees
each angle is the supplement of the other
parallel lines
two lines that never meet
perpendicular lines
two lines that form right angles when they intersect
vertical angles
two angles that are opposite each other
adjacent angles
two angles that share a common side
transversal
line that intersects two or more lines at different points
