題組內容
10. The following figure shows a square based pyramid with vetices at O(0, 0, 0),
A(1, 0, 0), B(1, 1, 0), C(0, 1, 0) and D(0, 0, 1).
(e) Find the area of the triangle OPQ. [2 分]
詳解 (共 1 筆)
Jerry Pan
詳解 #4068748
BD向量=(-1,-1,1),設Q(1-...
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