11. (5 points) Use a 34-meter long rope to form a rectangle, and the side lengths of the rectangle are all integer meters. There are $\qquad$ different ways to form the rectangle (rectangles with the same side lengths are considered the same way).

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11. (5 points) A 34-meter long rope is used to form a rectangle, and the side lengths of the rectangle are all integers in meters. There are $\qquad$ 8 different ways to form the rectangle (rectangles with the same side lengths are considered the same).

【Solution】Solution: Let the length of the rectangle be $a m$, and the width be $b m$, and $a \geqslant b$. According to the problem, $a+b=17$. Since $a, b$ are both integers, the possible values of $(a, b)$ are as follows: $(16,1),(15,2),(14,3),(13,4), (12,5),(11,6),(10,7),(9,8)$. Therefore, the answer is 8.