1985 AMC 8 第 11 题
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所有题目均经美国数学协会（MAA）官方合法授权使用。
11.
一张纸由六个连在一起的正方形组成，标记如图所示。沿正方形的边折叠后形成一个立方体。与标有 的面相对的面，其标记是
A piece of paper containing six joined squares labeled as shown is folded along the edges of the squares to form a cube. The label of the face opposite the face labeled is
小提示：
选一个面作为正面，再沿正方形的边折叠其余部分
Pick one face to be the front and fold the rest of the net around it
大提示：
如果 成为底面，追踪哪个正方形会成为顶面
If becomes the bottom face, track which square ends up on top
解答：
把这个展开图折成让 成为底面。那么 、、、 会围成四个侧面。
唯一剩下的正方形 成为顶面，与底面 相对。
所以正确答案是 E。
Fold the net so that is the bottom face. Then and wrap around to become the four side faces.
The only remaining square, becomes the top face, which is opposite the bottom face
Thus, the correct answer is E .
其他年份的第 11 题
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- 1987 AMC 8
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