Classify and Label Angles . Concept/s in Focus: 👉 An angle is the space between two lines that share a common point (vertex). 👉 Angles can be static (does not move) e.g. the corner of a table; or dynamic (does move) e.g. the hands of an analogue clock or the edges of a door. 👉 A right angle is an angle where the two arms form a square corner. 👉 A right angle is a quarter turn and is also a three-quarter turn. 👉 The corner of a piece of paper can be used as a right angle / square corner test