三视图是高考的新增内容,也是近年高考数学中的热点问题,且试题多数是三视图的逆向问题,即由题设给出的三视图,求三视图所表示的几何体的几何量(如体积、全面积等);这类试题,对于命题者来说很容易操作(但也容易出偏差),可先选定一个几何体,再画出其三视图,试题就基本构作成功了 Three views is the college entrance examination of the new content, but also in recent years entrance exam math in the hot issues, and most of the questions are the reverse view of the three views, that is provided by the title of the three views, seeking geometric views of three geometric quantities Volume, full area, etc.); Such questions, for the proponent is easy to operate (but also easy to deviation), you can first select a geometry, and then draw the three views, the questions on the basic construction of a successful