1996 AMC 12 第 10 题
先试着解答 1996 AMC 12 第 10 题，然后核对你的答案与精心整理的解答，解答来自 LIVE by Po-Shen Loh。你也可以参加完整限时模拟考试、查看全部 1996 AMC 12 解答，或核对答案。
所有题目均经美国数学协会（MAA）官方合法授权使用。
10.
一个给定立方体的顶点之间一共可以确定多少条线段？
How many line segments have both their endpoints located at the vertices of a given cube?
答案：D
小提示：
任取两个不同的立方体顶点就能确定一条线段
A segment is determined by choosing two distinct cube vertices
大提示：
计算立方体八个顶点的无序点对数
Count unordered pairs among the cube’s eight vertices
解答：
立方体的 个顶点中，每个无序点对都确定一条线段，其中包括棱和对角线。共有 条，所以正确答案是 D。
Every unordered pair of the cube’s vertices determines one segment, including edges and diagonals. There are so the correct answer is D.
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