F.5Angle & Lines in 3D figures
2011-03-04 1:13 am
The length, width and height of a rectangular box are 25cm, 8cm and 12cm respectively. Find the length of the longest rod that can be placed inside the box. (Hint: You may use sine or cosine formula for answering the question)
回答 (1)
2011-03-04 2:33 am
✔ 最佳答案
The length of the longest rod= √(25^2 + 8^2 + 12^2)
= √833
~ 28.86 cm
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