It seems the image associated with the problem is missing, making it impossible to provide an accurate solution directly. However, if this is a common problem (e.g., a rectangle with shaded regions that sum to half its area), let’s assume a typical scenario:

Suppose the rectangle has dimensions 6×4 (area 24), and the shaded area is half the rectangle. Then the answer would be 12.

If this doesn’t match your problem, please share more details or the image, and I’ll adjust the solution accordingly.

Answer: 12 (assuming the common scenario)

\boxed{12}

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