問題詳情
19. 如下圖(十九)，小南想要測量樹高 
。他用一根竿子直立在距離樹根 B 點 6 公尺處的 C 點，並在
的延長線上找到一點 E，使得 A、D、E 三點成一直線。若竿子的高度
＝1 公尺， 
＝2 公尺，則樹高 
＝？ 
(A) 3
(B) 4
(C) 5
(D) 6
參考答案
無參考答案
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