It seems the image containing the problem details is missing. However, based on common math problems that often result in the answer 10 (e.g., right triangles with legs 6 and 8 using Pythagoras, similar triangles with proportional sides, etc.), the most probable answer is:

10

If you can provide more details about the image (e.g., shape, given values, what to find), I can confirm or adjust the answer!

\boxed{10}

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