What Are The Different Types Of Angles Angle: Two rays with a common end point form an angle. OA, OB are rays & O is end point. Types of Angles In geometry, angles can be classified according to the size (or magnitude) of the angle. Right angle: An angle whose measure is 90°, is called a right angle. Two lines that meet at a right angle are said to be … [Read more...] about What Are The Different Types Of Angles