Types of Angles
Geometry Terms
Types of Triangles
Types of Lines
Angles in Letters
100
An angle that measures 90 degrees.
What is a right angle?
100
.
What is a point?
100
A triangle with all sides measuring less than 90 degrees.
What is an acute triangle?
100
Two lines that intersect at a 90 degree angle.
What is perpendicular lines?
100
W
What is acute angles?
200
An angle that measures less than 90 degrees.
What is an acute angle?
200
<--------------->
What is a line?
200
A triangle with two acute angles and one obtuse angle.
What is an obtuse triangle?
200
Two lines that intersect at more than/less than 90 degree angles.
What is intersecting lines?
200
L
What is a right angle?
300
An angle that measures more than 90 degrees.
What is an obtuse angle?
300
----------->
What is a ray?
300
A triangle with two acute angles and one right angle.
What is a right triangle?
300
Two lines that run along each other, but will never touch.
What is parallel lines?
300
K
What is obtuse and acute angles?
400
An angle that measures 180 degrees.
What is a straight angle?
400
-------------
What is a line segment?
400
A triangle with one obtuse angle.
What is an obtuse triangle?
400
+
What is perpendicular lines?
400
A
What is acute angles?
500
An angle that measures 153 degrees.
What is an obtuse angle?
500
___________________ ___________________
What is parallel lines?
500
A triangle with one right angle.
What is a right triangle?
500
x
What is intersecting lines?
500
C
What is an arc?
M
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n
u