Trigonometric Functions

Base of Trigonometry

If two right triangles have equal acute angles, they are similar, so their side lengths are proportional. Proportionality constants are written within the image: $\sin{\theta}$, $\cos{\theta}$, $\tan{\theta}$ where $\theta$ is the common measure of five acute angles.

Source

Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

"Trigonometric functions."

http://en.wikipedia.org/wiki/Trigonometric_functions Wikipedia CC BY.

Trigonometric Functions

Base of Trigonometry

Source

Related Terms