Acute Angle

When two rays are joined together at a common point, an angle is formed.

Definition:

Acute angle: A angle whose measure is more than 0 degree and less than 90 degree is called a acute angle.

AOB is a acute angle, it’s measure 45º, which is less then 90 degree and more then 0 degree.

Examples of acute angles are 10º, 23º, 45º, 54º, 75º, 89º, 78º, 65º. So the in degree of acute angle from 0 degree and less than 90.

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