Learn how to use cosine to find the missing side of a triangle

The video tutorial explains trigonometric relationships, focusing on cosine. It covers how to identify adjacent and hypotenuse sides in a right triangle and solve for unknowns using the cosine ratio. The tutorial emphasizes not converting decimals until the end and provides a conceptual understanding of cosine using the unit circle. It concludes with a practical application using a calculator.

What is the relationship between the adjacent side and the hypotenuse in a right triangle?

What steps would you take to find the hypotenuse using the cosine ratio?

How do you solve for x when it is in the denominator of an equation?

Explain the process of using a calculator to evaluate trigonometric functions.

What is the cosine of 60 degrees and how is it used in calculations?