更新1:
請問第10題的解法??謝謝!!
請問第10提的解法??謝謝?
回答 (1)
2016-01-14 12:28 am
AD = line of equal angles => BD = CD = 4
∠BHC = 90° => Plot a semi-circle with center = D
Then B,H,C on the circle.
Thus DH = radius = 4
Answer = (A)
∠BHC = 90° => Plot a semi-circle with center = D
Then B,H,C on the circle.
Thus DH = radius = 4
Answer = (A)
收錄日期: 2021-05-01 15:25:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160108055623AAY9iAX