What you need to know
To achieve 100 you need to:
recognise angles where they meet at a point or on a straight line
find missing angles at a point and along a straight line.
- An angle is a measure of turn and is measured in degrees (°).
- There are 360° in a complete turn.
- Angles at a point add to 360°.
- A right angle is a quarter turn.
of 360° = 90°.
- Two right angles make a straight line. 2 × 90° = 180°.
