如題:
in triangle abc, ac=ab. a line which is perpendicular to bc is drawn from a to meet bc at d. from b, a line is drawn to meet ad produced at e such that ae=ab. if ac//be, find angle ebd.
要快快快速!!
收錄日期: 2021-04-13 17:08:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100308000051KK01404