如图已知∠1=∠2,CE∥BF,则AB∥CD吗?为什么?             

  如图已知1=2CEBF,则ABCD吗?为什么?

                                  

答案

平行,

CEBF (已知)

∴ ∠1=B (两直线平行,同位角相等)

∵ ∠1=2 (已知)

∴ ∠2=B (等量代换)

ABCD  (内错角相等,两直线平行)

相关题目

若等式﹣3□2=﹣1成立,则□内的运算符号为( ) A.+    B
若等式﹣3□2=﹣1成立,则□内的运算符号为( ) A.+    B.﹣   C.×   D.÷
2010年3月,全国上下严抓“酒驾”行为。司机张某在行车过程
2010年3月,全国上下严抓“酒驾”行为。司机张某在行车过程中违反了交通规则,交警扣留了张某的驾驶证,张某觉得处罚太重,此时,张某可以行使  
 According to the driver’s explanation, it was not his carelessness but the
 According to the driver’s explanation, it was not his carelessness but the bad road     conditions that ______ for the accident.  A. was to be blamed  B . was to blame C. were to be blam
         A.          B.        C.        
         A.          B.        C.           D.
I’m very happy _________ a chance to visit your country.      A. to have
I’m very happy _________ a chance to visit your country.      A. to have given    B. to give        C. giving           D. to be given
I thought she was the very girl that I should marry _______ I met her. A. first
I thought she was the very girl that I should marry _______ I met her. A. first time    B. for the first time C. the first time      D. by the first time
阅读下面的文章,完成1~4题。 听雨 季羡林     ①“润物细
阅读下面的文章,完成1~4题。 听雨 季羡林     ①“润物细无声”,春雨本来是声音极小极小的,小到了“无”的程度。但是,我现在坐在隔成了一间
There ___two hotels and a supermarket near here.A.is B.areC.has D.have
There ___two hotels and a supermarket near here.A.is B.areC.has D.have

最新题目