问题描述:
三角形ABC三边长都是100米,甲自A向C,乙自B向A,如图,同时开始沿三角形兜圈子.甲每分钟走120米,乙每分钟走150米,但过每个顶点时因转弯的缘故,总要花费5秒的时间.问乙追及甲,是在出发后多少时间?位置在何处?
`````A甲
`````/\ ↓
````/``\
↑ /````\
乙ˉˉˉˉC
B
帮帮忙~~~~~~
`````A甲
`````````````````````/\ ↓
````````````````````/``\
````````````````↑ /`````\
```````````````乙ˉˉˉC
`````````````````B
问题解答:
不懂