Chap. 1 Vocabulary Flashcards
_____ angles are two angles whose measures have a sum of 90 degrees
complementary
_____ angles are two angles whose sides are opposite rays
vertical
_____ angles are two angles whose measures have a sum of 180 degrees
supplementary
If two segments have the same length, then the segments are _____ _____
congruent segments
Angles with the same measure are _____ angles.
congruent
A point, line, ray, or other segment that intersects a segment at its midpoint is called a _____ _____.
segment bisector
An _____ _____ is between 90 and 180 degrees.
obtuse angle
_____ _____ are two rays that share the smae ndpoint and form a line
opposite rays
Points and lines that lie in the same plane are _____.
coplanar
An _____ _____ is between 0 and 90 degrees.
acute angle
A _____ _____ is a pair of adjacent angles whose noncommon sides are opposite rays.
linear pair
A _____ indicates a location and has no size.
point
The real number tha corresponds to a point is called the _____ of the point.
coordinate
A _____ is a two-dimensional diagram that you can fold to form a three-dimensional figure.
net
A _____ is part of a line that consists of one endpoint and all the points of the line on one side of the endpoint.
ray
When you have two or more geometric figures, their _____ is the set of points the figures have in common.
intersection
The endpoint is the _____ of the angle.
vertex
The _____ between points A and B is the absolute value of the difference of their coordinates.
distance
Points that lie on the smae line are _____ _____.
collinear points
A _____ is represented by a straight path that extends in two opposite directions without end and has no thickness, containing infinitely many points.
line
An _____ is formed by two rays with the same endpoint.
angle
A _____ is part of a line that consists of two endpoints and all points between them
segment
The _____ of a segment is a point that divides the segment into two congruent segments.
midpoint
A _____ _____ is equal to 180 degrees
straight angle
An _____ _____ is another way to represent a three-dimensional figure, showing a top view, a front view, and a right-side view.
orthographic drawing
_____ angles are two coplanar angles with a common side, a common vertex, and no common interior points.
adjacent
A _____ _____ is equal to 90 degrees.
right angle
A _____ is represented by a flat surface that extends without end and has no thickness, containing infinitely many lines.
plane
_____ is the set of all points in three dimensions.
space
An _____ _____ shows a corner view of a three-dimensional figure.
isometric drawing
The rays are _____ of the angle.
sides
A _____ or _____ is an accepted statement of fact.
axiom, postulate
An _____ _____ is a ray that divides an angle into two congruent angles.
angle bisector
A _____ _____ of a segment is a line, segment, or ray that is perpendicularto the segment at its midpoint.
perpendicular bisector
The _____ of a polygon is the sum of the lengths of its sides
perimeter
A _____ is a geometric tool used to draw circles and parts of circles called arcs.
compass
A _____ is a geometric figure drawn using a straightedge and a compass.
construction
The _____ of a polygon is the number of square units it encloses.
area
____ _____ are two lines that intersect to form right angles.
perpendicular lines
A _____ is a ruler with no markings on it.
straightedge
