The space between two intersecting lines or surfaces at or close to the point where they meet.

It is usually measured in degree.Angle is measured as the amount of turn.

**Type of Angles**

There are six different types of angles.

- Acute angle is less than 90°.
- Obtuse angle is greater than 90°.
- Right angle is exactly 90°.
- Straight angle is equals to 180°.
- Reflex angle is greater than 180°.
- Full Rotation is exactly 360°

**Negative and Positive Angles.**When measuring from a line:

- a
**positive**angle goes counterclockwise (opposite direction that clocks go). - a
**negative**angle goes clockwise.

Angles are drawn by the Use of Protector.