AMC 8 2006 Problem 4

AMC8 2006 年第 4 题

变换与对称★★☆☆☆

Initially, a spinner points west. Chenille moves it clockwise 2 1/4 revolutions and then counterclockwise 3 3/4 revolutions. In what direction does the spinner point after the two moves?

最初，转盘的箭头指向西部。Chenille 将其顺时针旋转圈，然后逆时针旋转圈。那么两次转动后，箭头指向哪个方向？

A. $\text{north}$
B. $\text{east}$
C. $\text{south}$
D. $\text{west}$
E. $\text{northwest}$

正确答案 · Correct Answer

B

解析 · Solution

解析整理中

继续练习

免费刷 2006 整卷 →登录解锁诊断（看你哪儿弱）→