In geometry, angles can be classified according to the size
of the angle
In these lessons, we will learn the following types of angles:
right angles, acute angles, obtuse angles, straight angles, reflex angles and full angles.
More Geometry Lessons
The following table shows the different types of angles: right angles, acute angles, obtuse angles, straight angles, reflex angles and full angles. Scroll down the page if you need more explanations about each type of angles, videos and worksheets.
What are the types of angles?
The following video will demonstrate and distinguish between the different types of angles: right, acute, obtuse, straight, reflex and full angles.
Practice Types of Angles with the following worksheets
Types of Angles
- Acute, Obtuse, Reflex
Angles in a straight line
Angles at a point
What are Right Angles?
A right angle is an angle measuring 90 degrees. Two
lines or line segments that
meet at a right angle are said to be perpendicular.
The following video explains more about right angles.
What are Acute Angles?
An acute angle is an angle measuring between 0 and
What are Obtuse Angles?
An obtuse angle is an angle measuring between 90
and 180 degrees.
What are Straight Angles?
A straight angle
is a straight line and it measures 180 degrees.
What are the differences between a right, acute, obtuse and straight angle?
What are Reflex Angles?
A reflex angle is an angle measuring between 180 and 360 degrees.
What are Full Angles?
A full angle is an angle of one complete turn which is 360 degrees.
An angle of one whole turn is 360˚.
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