已知:如图,AD∥BE,∠1=∠2,试说明:∠A=∠E. 

已知:如图,AD∥BE,∠1=∠2,试说明:∠A=∠E.

 

答案

 

解:∵AD∥BE,                             

∴∠A=∠3,    (1分)

∵∠1=∠2,

∴DE∥BC,    (2分)

∴∠E=∠3,    (3分)                                3

∴∠A=∠E     (4分)

解析:此图主要考察平行线的性质和判定。

 

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