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1、4.2 认识垂直1、1. 如果两条直线相交的夹角是90,那么这两条直线相互( ),其中一条是另一条的( ),它们的交点叫做( )。2、下图中,互相垂直的线段有几组?3、判断 . (1) 长方形的两组邻边相互垂直. ()(2) 下午三时整 , 钟面上时针与分针相互垂直。( )4。 过 A点画已知直线的垂线.AAA答案: 1。 垂直垂线垂足 2. 2组 3. (1) (2 )4. 略。尊敬的读者:本文由我和我的同事在百忙中收集整编出来,本文档在发布之前我们对内容进行仔细校对,但是难免会有不尽如人意之处,如有疏漏之处请指正,希望本文能为您解开疑惑 , 引发思考。文中部分文字受到网友的关怀和支持,在此
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