Types of Angles
Types of Angles
Secondary 1
| Name | Properties | Illustration |
|---|---|---|
| Acute Angle | \(0^\circ < x^\circ < 90^\circ\) | |
| Obtuse Angle | \(90^\circ < x^\circ < 180^\circ\) | |
| Reflex Angle | \(180^\circ < x^\circ < 360^\circ\) | |
| Right Angle | \(x = 90^\circ\) | |
| Complementary Angles | Two angles that add up to \(90^\circ\). (Note that the two angles need not be from the same diagram) | |
| Supplementary Angles | Two angles that add up to \(180^\circ\) (Note that the two angles need not be from the same diagram) |
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