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Special Angles
Angle Parts
Other
Types of angles
Basic
100
two angles whose sum is 90
What is complementary angles?
100
The common point of an angle where the two rays that form the angle meet
What is a vertex?
100
angles that have the exact same measure
What is congruent angles?
100
an angles whose measure is exactly 90 degrees
What is a right angle?
100
an exact location in space, represented by a dot, named with ONE capital letter
What is a point?
200
two angles whose sum is 180
What is supplementary angles?
200
part of a line that begins at a particular point and extends forever in the one direction
What is ray?
200
something that divides an angle in to two congruent angles
What is an angle bisector?
200
An angle whose measure is exactly 180 degrees
What is a straight angle?
200
a straight continuous and unending set of points in a plane?
What is a line?
300
a set of adjacent angles whose noncommon sides are opposite rays
What is a linear pair?
300
the rays that form an angle
What is a side?
300
a point that divides a line segment in to two equal parts
What is a midpoint?
300
An angle whose measure is greater than 0 degrees, but less than 90 degrees.
What is an acute angle?
300
a flat surface that extends without end?
What is a plane?
400
a set of angles who have a common vertex and side, but no common interior points.
What is adjacent angles?
400
The dots on an angle that are used when naming an angle
What is a point?
400
two rays that share the same endpoint and form a line
What is opposite rays?
400
an angle whose measure is greater than 90 degrees, but less than 180 degrees
What is an obtuse angle?
400
Points that lie on the same line
What is collinear?
500
two angles whose sides are opposite rays
What is vertical angles?
500
formed by two rays with the same endpoint
What is an angle?
500
something that consists of variables, numbers, and operations (hint: but no equal sign)
What is an expression?
500
an object or tool used to measure angles in degrees
What is a protractor?
500
points that lie in the same plane
What is coplanar?