Units of Measuring Angles
A sexagesimal degree is the amplitude of the angle obtained by dividing the circle into 360 equal parts.
1º = 60' = 3,600''.
1' = 60''.
A radian is the measure of an angle whose arc is one radio.
1 rad= 57° 17' 44.8''
360º = 2
rad
180º = rad
Examples
30º
rad
/3 rad º
Classification of Angles
| Acute < 90° | Right = 90° | Obtuse > 90° | Straight = 180° |
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