Exam Content Flashcards
a dot
named by a single capital letter
a location and has no size
no dimensions
point
an arrow at both ends
named by any two points on the line or a lowercase letter
an infinite number of points on a straight path that extends in two opposite directions with no end and has no thickness
one dimensional
line
a slanted 4 sided figure
named by 3 points in the plane or a capital letter
an infinite number of points and lines on a flat surface that extends without end and has no thickness
two dimensional
plane
a dot on both ends
named by its end points
the part of a line that consists of two points, called endpoints, and all points between them
segment
a dot on one end and an arrow on the other
named by its endpoint first and another point on the ray
the part of a line that consists of one endpoint and all the points of the line on one side of the endpoint
ray
a common endpoint and an arrow on both ends
named by the common endpoint and another point on each ray
rays with the same endpoint that lie on the same line
opposite rays
two rays with a common vertex (endpoint)
named by a single letter (vertex), number, or 3 points with the vertex in the middle
formed by two rays with the same endpoint
a side of the angle and the common endpoint is the vertex
angles
two angles across from each other formed by intersecting lines; they are always congruent
vertical angles
two angles that are adjacent and supplementary; they form a straight line
linear pair
two angles that have the same vertex and share a side without overlapping
adjacent angles
two angles with measures that sum up to 90 degrees
complementary angles
two angles with measures that sum up to 180 degrees
supplementary angles
the pythagorean theorem only works on … triangles
right
lines that never intersect
parallel lines
lines that intersect at 90 degree angles
perpendicular lines
