问题描述: AD A撇D撇分别是三角形ABC和三角形A撇B撇C撇的高 AB=A撇B撇 AD=A撇D撇 BC=B撇C撇 求证AC=A撇C撇今晚作业啊~! 1个回答 分类:政治 2014-09-22 问题解答: 我来补答 RT△ADB和RT△A'D'B'中∠ADB=∠A'D'B';AD=A'D';AB=A'B'RT△ADB≌RT△A'D'B'得到BD=B'D'BC=B'C',CD=BC-BD,C'D'=B'C'-B'D'CD=C'D',RT△ADC和RT△A'D'C'中∠ADB=∠A'D'B';AD=A'D';CD=C'D'RT△ADC≌RT△A'D'C'得AC=A'C 展开全文阅读