AMC 8 1997 Problem 17
AMC8 1997 年第 17 题
立体几何★★★☆☆
A cube has eight vertices (corners) and twelve edges. A segment, such as , which joins two vertices not joined by an edge is called a diagonal. Segment is also a diagonal. How many diagonals does a cube have?
一个正方体有八个顶点和十二条棱。像 这样连接两个不被棱相连的顶点的线段称为对角线。线段 也是一条对角线。一个正方体有多少条对角线？
- A.6
- B.8
- C.12
- D.14
- E.16
正确答案 · Correct Answer
E
解析 · Solution
解析整理中
继续练习