作业帮已知：AB=AC,AD=AE,说明：OB=OC
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/17 06:32:14
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已知：AB=AC,AD=AE,说明：OB=OC
已知：AB=AC,AD=AE,说明：OB=OC
已知：AB=AC,AD=AE,说明：OB=OC
∵AB=AC,AD=AE∠A=∠A∴△ABE≌△ACD∴∠B=∠C∵AC-AE=AB-AD即CE=BD∠COE=∠BOD,∠C=∠B∴△COE≌△BOD∴OB=OC