The median line of a triangle cuts off a similar triangle from it, with a similarity coefficient of $\frac{1}{2}$. Therefore, the area of the cut-off triangle is one-fourth of the area of the original triangle, i.e., $\frac{1}{\mathbf{4}} 16=4$. Consequently, the area of the remaining trapezoid is $16-4=12$.

## Answer

12.
The area of the triangle is 16. Find the area of the trapezoid that is cut off from the triangle by its midline.

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