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如何計算四邊形的平行度和垂直度

Jun 29th 2013, 01:15

公司有一產品，他是四邊形，標準是A//C、B//D，並每一個面都須垂直，假設我使用量表量出數據如下：
A面為1.7、B面為1.5、C面為2.0、D面為1.8
請問我該如何計算平行度和垂直度，以便可以知道此產品是否是四邊形呢?
煩請提供公式和計算方式。謝謝!!

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