Acute Angles

An Acute Angle is less than 90°

Acute Angle

More Examples of Acute angles

Acute Angle Examples

Which Angle?

Remember to look carefully at which angle you are being asked to name.

The acute angle is the small angle which is less than 90°.

The larger angle you will have a Reflex Angle (more than 180° but less than 360°)

Acute and Reflex Angles

The smaller angle is an Acute Angle, but the larger angle is a Reflex Angle

Learn More


Obtuse Angles

Reflex Angle

Complementary Angles

Geometry Index