ABE60的知识精选

如图,AB//CD,点E在CB的延长线上,若ABE=60。则ECD的度数为(   )     A.120o  ...
问题详情:如图,AB//CD,点E在CB的延长线上,若ABE=60。则ECD的度数为(   )     A.120o                     B.100o                      C.60o             ...
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