# Trigonometry Examples

The cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.
Substitute the name of each side into the definition of the cosine function.
Set up the equation to solve for the adjacent side, in this case .
Substitute the values of each variable into the formula for cosine.
Multiply by to get .

We're sorry, we were unable to process your request at this time

Step-by-step work + explanations
•    Step-by-step work
•    Detailed explanations
•    Access anywhere
Access the steps on both the Mathway website and mobile apps
$--.--/month$--.--/year (--%)