1、Use the vector dot product to find the obtuse Angle between two diagonals of a cube.
用矢量點積求立方體的兩條對角線所夾的鈍角。

2、One way to create this obtuse Angle is to lean back further.
形成這種鈍角的方法之一是再向后傾斜一點。

3、The relevant obtuse Angle principle is proved.
并證明了相應(yīng)的鈍角原理。

obtuse angle翻譯