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立体几何初步是高一数学重点学习的内容之一,它在高考数学中也起着举足轻重的作用.立体几何主要研究的是空间点、线、面相互之间的位置关系以及数量关系.直线与平面的位置关系是立体几何的核心,求空间角和距离的伺题是立体几何中最重要的题型.一般求异面直线所成的角的题目在选择、填空题中遇到得多一点,而线面角和二面角在解答题中考查得较多.求距离往往与求体积相联系,突出考查空间想象能
The preliminary three-dimensional geometry is one of the major mathematics of high school mathematics, it also plays a pivotal role in the college entrance examination mathematics. The main research of the three-dimensional geometry is the location of the spatial point, line, surface and quantity relationship between each other. The positional relationship of the plane is the core of the three-dimensional geometry. The most important question in the three-dimensional geometry is the spatial angle and the distance. The problem of the angle formed by the straight line of the different surface meets a little more in the selection and filling in the blank. , And the line face angle and the dihedral angle are examined more frequently in the solution question. The distance is often associated with the volume, and the space imagination can be highlighted.