Second ending point of the line segment.
线段的第二个端点。
Because the line segment must be line failure is really damage.
因为线段必须要被线段破坏才是真破坏。
Look at the line segment. Can you make a multiplication problem for it?
根据线段图编一道乘法应用题,再改编成两道除法应用题。
Now I have the ability to say, I've got a new class, I can create instances of a line segment, and it's elements are themselves instances of points. OK?
这就是我们要讲模块化的地方了,现在我可以说,我创建了一个新类,我可以创建线段的实例了,这些实例的元素?
The length of a line segment?
好,几何学是怎么说的来着?
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