since 2 sides will be 11 and the third side will be 8 the fourth side also needs to be 8 to make it a parallelogram
The length of the last side is 8 feet.
"It is quadrilateral whose opposite sides are parallel and congruent to each other."
For given question,
We have been given a farmer needs to enclose a section of land in the shape of a parallelogram by using one side of a barn for one side
The barn and the side opposite of the barn will both be 11 feet.
Also, one of the other side will be 8 feet long.
We know, opposite sides of parallelogram are equal in length.
So, the length of the side opposite of the 8 ft long barn = 8 ft.
Therefore, the length of the last side is 8 feet.
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