Acute angle
Acute angle – An angle that is less than 90° (a sharp angle).
A cute (acute) animal is always small (less than 90°), but watch out! It has very sharp teeth (a sharp angle).
Example 1
An angle less than 90° is described as acute.
Example 2
Although these two angles are different, they are both less than 90° and are therefore both acute angles.
Example 3
You may only just be able to see an acute angle.