Question

如图,已知在△ABC中,点D、E在BC上,AB=AC,AD=AE,请说明BD=CE的理由

Answer 1

∵AB=AC,

∴∠B=∠C．

∵AB=AC,AD=AE,

∴△ABE≌△ACD．

∴BE=CD．

∴BE-DE=CD-DE,

即BD=CE．