AMC 8 2003 Problem 1

AMC8 2003 年第 1 题

立体几何★☆☆☆☆

Jamie counted the number of edges of a cube, Jimmy counted the numbers of corners, and Judy counted the number of faces. They then added the three numbers. What was the resulting sum?

Jamie 数了一个正方体的边数，Jimmy 数了它的顶点数，Judy 数了它的面数。然后他们把这三个数字相加。结果是多少？

A.12
B.16
C.20
D.22
E.26

正确答案 · Correct Answer

解析 · Solution

Solution 1

On a cube, there are 12 edges, 8 corners, and 6 faces. Adding them up gets

12+8+6= \mathrm{(E)26}

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