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Geometry: Types Of Angles

In geometry, angles can be classified according to the size of the angle. The types of angles are right angles, acute angles, obtuse angles and straight angles.

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.

Acute Angles

An acute angle is an angle measuring between 0 and 90 degrees.

Obtuse Angles

An obtuse angle is an angle measuring between 90 and 180 degrees.

Straight Angles

A straight angle is a straight line and it measures 180 degrees.

The following video shows the differences between a right, acute, obtuse and straight angle.

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