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Acute Angles. Illustrated definition of Acute Angle: An angle less than 90deg (90deg is called a Right Angle) Try different angles...
Definition: An acute angle is an angle with the degree measure greater than 0° and less than 90°. Examples of acute angles. We already know that an acute angle measures less than 90°. The examples of acute angles are 12°, 35°, 61°, or 89°, but angles 0°, 90°, 146°, or 214° are not acute angles.
Acute angles are the smallest, being between (but not including) zero and 90° Note also that acute triangles are those where all the interior angles are acute. A way to remember. Sometimes we can confuse acute and obtuse angles. A way to remember is that small things tend to be cute. Acute angle is the smallest type. Types of angle.
