How to use the sine function to find the missing side of a triangle

The video tutorial covers the application of trigonometric functions to solve for unknown side lengths in right triangles. It begins with an introduction to sine, cosine, and tangent, and explains why the Pythagorean theorem and special right triangles are not applicable in certain cases. The instructor guides students through selecting the appropriate trigonometric function using the Sohcahtoa mnemonic and demonstrates solving for an unknown side using the sine function.

What is the relationship between the opposite side and the hypotenuse in this problem?

How do you solve for X using the sine function in this context?

What is the final calculated value of X, and how was it derived?