# Acute Angles

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## Acute Angles in Detail

Angles are usually measured in degrees. An acute angle is a kind of an angle that measures between 0° and 90°, which means it is smaller than a right angle (L shape). An acute angle has a horizontal “V” shape. Acute angles are an elementary concept of geometry that have wide applications. There are three fundamental types of angles, and they are acute angle, right angle, and obtuse angle.

## How to Remember Acute Angles?

Sometimes we get confused between the acute angles meaning and obtuse angles meaning. To remember the meaning of acute angle and identify it in an easy way, you can remember that the smallest angle in a triangle is an acute angle. We already know that the measure of an acute angle is less than 90°. Therefore, acute angle examples are 25°, 36°, 47°, 80°, and so on. Students can follow the formula of an acute angle to solve the sums of geometry.

## Measurement of Acute Angles

An acute angle comprises two rays or line segments. The two-line segments meet at one endpoint of an acute angle. One line segment forms the base of the angle, while the line segment forms the arm of the angle. An acute angle can be measured by reading the angle measures on the protractor anti-clockwise. The acute angle can be constructed and measured with the help of a protractor. Acute angles are considered to be sharp angles. To have a precise idea about an acute angle degree diagrammatically, students can follow the image shown below.

∠ABC measures 30° and hence it is an acute angle.