in triangle ABC above, what is the length of side BC?
1. line segment AD has length 6
2. x=36
就是一个看起来像直角三角形ABC里面有一个BD线跟AC相交,角BDC=角BCA=2x.
我觉得应该是E,答案说是A,题后的解释里面默认角BAD=x了,是不是因为我是盗版的所以图形没画全啊?
[此贴子已经被作者于2007-10-15 16:54:17编辑过]
欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) | Powered by Discuz! 7.2 |