Angle in a plane whose measure is less than that of a right angle and greater than zero.

The degree measure of an acute angle is between 0° and 90°.

### Examples

These two angles are acute angles.

In degrees, m∠A = 15°.

In degrees, m∠C = 50°.

Angle in a plane whose measure is less than that of a right angle and greater than zero.

The degree measure of an acute angle is between 0° and 90°.

These two angles are acute angles.

In degrees, m∠A = 15°.

In degrees, m∠C = 50°.