Curriculum
Mathematics — First Preparatory
Unit 1: Numbers
0/10
Unit 2: Algebra
0/4
Unit 3: Statistics
0/6
Text lesson
Types of Angles and Their Relations
Types of Angles and Their Relations
The angle and its types
The angle and its types
- An angle is formed by two rays that have a common starting point called the vertex.
- The two rays are called the arms of the angle.
- Angles are measured in degrees (°) using a protractor.
| Type of angle | Measure |
|---|---|
| Acute | less than 90° |
| Right | 90° |
| Obtuse | greater than 90° and less than 180° |
| Straight | 180° |
| Reflex | greater than 180° and less than 360° |
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