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education/math/MATH1060 (trig)/Angles.md
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@ -2,8 +2,12 @@ Angles consist of two rays with the same endpoint and are typically measured in
If an angle is measured counterclockwise, it's a *positive angle*, and if an angle is measured clockwise, it's a *negative angle*.
## Complementary and Supplementary Angles
## Degrees and Radians
To convert **from radians to degrees**, multiply the radian value by $\frac{180\degree}{\pi}$.
$$ x * \frac{180\degree}{\pi}$$
To convert **from degrees to radians**, multiply the degree measure by $
## Complementary and Supplementary Angles
A **complimentary** angle is formed when two positive angles add up to $90\degree$ or $\frac{\pi}{2}$. One mnemonic device that you can use to remember this is:
> Complementary starts with C, and C stands for corner. $90\degree$ makes a corner.