如图,AB=CD,BE=DF,AF=CE.说明(1)BE=DF(2)AB//CD,BE//DF.

来源:学生作业帮助网 编辑:六六作业网 时间:2024/10/03 06:07:20
如图,AB=CD,BE=DF,AF=CE.说明(1)BE=DF(2)AB//CD,BE//DF.如图,AB=CD,BE=DF,AF=CE.说明(1)BE=DF(2)AB//CD,BE//DF.如图,A

如图,AB=CD,BE=DF,AF=CE.说明(1)BE=DF(2)AB//CD,BE//DF.
如图,AB=CD,BE=DF,AF=CE.说明(1)BE=DF(2)AB//CD,BE//DF.

如图,AB=CD,BE=DF,AF=CE.说明(1)BE=DF(2)AB//CD,BE//DF.
(1)BE=DF在题设里,是不是写错了.
(2)AB//CD,BE//DF.
AB=CD,BE=DF,AF=CE.
AE=AF+EF=CE+EF=CF
三边相等,两三角形全等,所以∠DFC=∠BEA,∠A=∠C,内错角相等两直线平行.
即AB//CD,BE//DF.