Geometry: Types Of Angles
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.
Related Pages
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.
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Angle Worksheets
Printable
Types of Angles (Acute, Obtuse, Right)
Angles on a Straight Line
Vertical Angles
Complementary Angles
Supplementary Angles
Complementary & Supplementary Angles
Angles at a Point
Calculate Adjacent AnglesOnline
Types of Angles
Angles in a Straight Line
Angles at a Point
Complementary Angles
Supplementary Angles
What Are The Types Of Angles?
Worksheets
Practice Types of Angles with the following worksheets
Types of Angles - Acute, Obtuse, Reflex
Angles in a straight line
Angles at a point
Geometry Worksheets
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 90 degrees.
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°.
How To Draw Reflex Angles?
Example:
Draw a 220° angle
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