Rounding the previously calculated value of \( x \) to the nearest tenth:

\[
x \approx 4.446 \text{ units} \quad \text{(rounded to nearest tenth)} \Rightarrow x \approx 4.4 \text{ units}
\]

So, the length of \( x \) rounded to the nearest tenth is **4.4 units**.

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Here are some related questions you might consider:
1. How do you round numbers to different decimal places?
2. Can trigonometric functions be used to find angles if the sides are known?
3. What is the cosine of the 20° angle in this triangle?
4. How can we find the area of this triangle using the known values?
5. What would be the length of the side adjacent to the 20° angle?

**Tip:** When rounding, always check the digit immediately after the place you're rounding to; if it's 5 or greater, round up.

Learn how to round numbers to the nearest tenth with our detailed step-by-step guide and examples. This problem covers rounding rules and techniques, ensuring accuracy in mathematical calculations. Suitable for students in Grades 3-5.

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