問題詳情
16. 如圖，若 
均為一圓的兩弦，則下列敘述何者正確？
(A)連接兩弦的端點所形成的四邊形為長方形
(B)連接 
(C)∠ADB＋∠ACB＝180°
(D)若 
與 
的交點為E，則∠AEC＝ 
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增
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