# Trigonometric functions

In the right triangle is:

Find the value of s and c:

$\text{tg}\alpha ={\displaystyle \frac{2}{1}}$

Find the value of s and c:

$\text{sin}\alpha ={\displaystyle \frac{s}{\sqrt{5}}}$

$\text{cos}\alpha ={\displaystyle \frac{c}{\sqrt{5}}}$

### Correct answer:

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Pythagorean theorem is the base for the right triangle calculator.

See also our trigonometric triangle calculator.

See also our trigonometric triangle calculator.

#### You need to know the following knowledge to solve this word math problem:

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