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

The video tutorial explains how to calculate the cosine of 59 degrees, emphasizing the importance of setting the calculator to degree mode. It guides through the process of performing the calculation and rounding the result to the nearest thousandth.

What is the cosine of 59 degrees equal to in terms of adjacent and hypotenuse?

Why is it important to set your calculator to degree mode when solving trigonometric problems?

What steps should you follow to ensure your calculator is in the correct mode?

How do you calculate the value of X using the cosine of 59 degrees?

What is the approximate value of X when rounded to the nearest thousandth?