钟表是我们生活中最常见的计时工具,你是否知道在钟表面上蕴含着许多有趣的数学问题,下面举例说明钟表面上的数学问题的求解方法:1求角度问题问题1求1时20分时,时针与分针的夹角.分析画出1时20分时,指针位置如图1所示,要求时针与分针的夹角,关键是求时针从1时到1时20分所转的角度,分针每分钟转6°,时针每分转0.5°,20分钟时针转10°,于是 Clocks are the most common timekeeping tools in our life. Do you know that there are many interesting mathematical problems on the clock surface? Here are some examples to illustrate how to solve the mathematical problems on the clock surface: 1. Seek angle problems Question 1: Seeking 1:20 Hour, hour and minute hands. Analysis draw 1:20, the pointer position shown in Figure 1, the hour hand and the minute hand angle, the key is to find the hour hand from 1:00 to 1:20 turn angle , Minutes per minute turn 6 °, hour hand per minute 0.5 °, 20 minutes clockwise turn 10 °, so