An angle is a figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles are usually measured in degrees (°), radians (rad), or grads (grad).
There are many different units for measuring angles. The most common are:
Unit | Equivalent in Degrees |
---|---|
1 Radian | 57.2958° |
1 Grad | 0.9° |
1 Minute | 0.01667° |
1 Second | 0.0002778° |
1 Gon | 0.9° |
1 Sign | 30° |
1 Mil | 0.05625° |
1 Revolution | 360° |
1 Circle | 360° |
1 Turn | 360° |
1 Quadrant | 90° |
1 Right Angle | 90° |
1 Sextant | 60° |