An acute angle. You can remember it by thinking acute because it is small and cute.
An angle smaller than a right angle - is an acute angle. Larger than a right angle, but smaller than 180 degrees is an obtuse angle. Angles between 180 and 360 degrees are reflex angles.
acute angle
An acute angle is smaller than a right angle.An obtuse angle is larger than a right angle.^_^
a right angle is 90 degrees A Right is 90 degrees , a acute angle is smaller than 90 degrees and a obtuse angle is more than 90 degrees
An acute angle is an angle of less than 90°. A 90° angle is a right angle, the angle you find at two adjoining edges of a square. An angle smaller than a right angle is called an acute angle, while an angle larger than it is called and obtuse angle.
iscoceles
An acute angle is one that is smaller than a right angle, so it covers the range of 0o< (angle) <90o.
An obtuse angle has more than 90 degrees. An obtuse angle is larger than a right angle (90 degrees) and smaller than two right angles (180 degrees), so an obtuse angle is between 90 and 180 degrees.
An acute triangle.
A angle that is smaller than 90 degrees is an acute angle.
Any angle greater than 90º and less than 180º is an obtuse angle.
Reflex angle.