Maths problem: how to prove, thanks?
回答 (1)
2021-01-07 7:57 pm
✔ 最佳答案
∠EAD = ∠FAD∠AED = ∠AFD
By AAS, △AED 全等 △AED
∴AE = AF,
設 AD線段 與 EF線段 交於 G,
則 by SAS, △AEG 全等 △AFG
∴ ∠AGE = ∠AGF = 90°, 且 EG = FG.
收錄日期: 2021-04-24 08:10:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20210107114234AARMDgB