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Chapter 1-3 through 1-5 Vocabulary

Name:____________________________________
Date: ____________________________________
Block: ____________________________________
Across
When naming angles using three letters, the vertex must be the ______ of the three letters.
Points that lie outside an angle are said to be in the ________ of the angle.
Opposite rays with the same vertex form a(n) ________ angle. its measure is 180.
The ________ of a segment is the point halfway between the endpoints of the segment.
The degree results from dividing the distance around a(n) ______ into 360 parts.
A(n) ______ pair is a pair of adjacent angles with noncommon sides that are opposite rays.
To find the midpoint of a segment on a number line, find the ____, or average, of the coordinates of its endpoints.
_____________ angles are two angles with measures that have a sum of 90.
Lines, segments, or rays that form right angles are _____________.
Rays are named by stating the ________ first and then any other point on the ray.
A ray that divides an angle into ___ congruent angles is called an angle bisector.
Since both rays share a common endpoint, opposite rays are __________.
An angle whose measure equals 90 degrees is called a(n) _____ angle.
Angles are measured in units called _______.
________ angles are two angles that lie in the same plane and have a common vertex and a common side, but no common interior points.
Down
The common endpoint is the ______.
________ angles are two nonadjacent angles formed by two intersecting lines.
A(n) ___ is a part of a line. It has one endpoint and extends indefinitely in one direction.
If you choose a point on a line, that point determines exactly two rays called ________ rays.
An angle whose measure is less than 90 degrees is called a(n) ______ angle.
_____________ angles are two angles with measures that have a sum of 180.
The rays are called _____ of the angle.
You can think of the midpoint of a segment as being half the distance from one endpoint to the other. You can also find points that are other __________ distances from an endpoint.
Just as segments that have the same measure are __________ segments, angles that have the same measure are _________ angles.
Any segment, line, or plane that intersects a segment at its midpoint is called a segment ________.
You can name an angle using a(n) ______ letter only when there is exactly one angle located at that vertex.
Points that lie inside an angle are said to be in the ________ of the angle.
An angle whose measure is greater than 90 degrees but less than 180 degrees is called a(n) ______ angle.
A(n) _____ is formed by two noncollinear rays that have a common endpoint.