It seems like you are referring to a mathematical problem involving vectors or angles, but the text is a bit fragmented. To help you better, could you please clarify the question a bit more?

• Are you working with vectors $V$ and $W$, and are they part of a triangle or another geometric shape?
• Is there any specific formula you need to apply (e.g., the law of cosines, sine rule, or a vector operation)?
• What do the 64° and the numbers "8.9" refer to?

Once I have more details, I can provide the appropriate solution.