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).5ed70936453e5.jpg

(b) Find the angle between the faces ABD and BCD. [2 分] The plane Π2 , passes through O and is normal to the line BD. [2 分]

詳解 (共 1 筆)

詳解 提供者：浪漫名師na

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