Types of angles?

1. Acute angle: An angle that measures less than 90 degrees.
2. Right angle: An angle that measures exactly 90 degrees.
3. Obtuse angle: An angle that measures more than 90 degrees but less than 180 degrees.
4. Straight angle: An angle that measures exactly 180 degrees.
5. Reflex angle: An angle that measures more than 180 degrees but less than 360 degrees.
6. Complementary angles: Two angles whose measures add up to 90 degrees.
7. Supplementary angles: Two angles whose measures add up to 180 degrees.
8. Vertical angles: A pair of non-adjacent angles formed by two intersecting lines.
9. Adjacent angles: Two angles that share a common side and vertex.
10. Interior angles: Angles that are inside a polygon.
11. Exterior angles: Angles that are outside a polygon.

- Acute angle: An angle that measures less than 90 degrees.
- Right angle: An angle that measures exactly 90 degrees.
- Obtuse angle: An angle that measures greater than 90 degrees and less than 180 degrees.
- Straight angle: An angle that measures exactly 180 degrees.
- Reflex angle: An angle that measures greater than 180 degrees and less than 360 degrees.
- Full angle: An angle that measures exactly 360 degrees.