The following video explains more about right angles.
An acute angle is an angle measuring between 0 and 90 degrees.
An obtuse angle is an angle measuring between 90 and 180 degrees.
A straight angle is a straight line and it measures 180 degrees.
The following video shows the differences between a right, acute, obtuse and straight angle.
A reflex angle is an angle measuring between 180 and 360 degrees.
A full angle is an angle of one complete turn which is 360 degrees.
An angle of one whole turn is 360˚.
The following video will distinguish between the different types of angles: right, acute, obtuse, straight, reflex and full angles.
Practice Types of Angles with the following worksheet
Types of Angles - Acute, Obtuse, Reflex