GMAT数学基础知识介绍：几何知识
<p> 很多新手对于<span word="GMAT">GMAT</span>数学不是十分自信，究其原因往往就是是由于对于<span word="GMAT">GMAT</span>数学知识点没有复习，而直接做题，为此小编特收集整理了关于几何的<span word="GMAT">GMAT</span>数学知识点，分享给大家，希望对大家有所帮助，文中观点仅供参考。</p><p> 1. <span word="Lines">Lines</span><span word="planes">planes</span> 直线与平面</p><p> ① 两直线平行并为第三条直线所截后，相应角的关系。</p><p> ② 直线与平面的关系。</p><p> 例：<span word="If">If</span> <span word="n">n</span> <span word="distinct">distinct</span> <span word="planes">planes</span> <span word="intersect">intersect</span> <span word="in">in</span> <span word="a">a</span> <span word="line">line</span>, <span word="and">and</span> <span word="another">another</span> <span word="line">line</span> <span word="L">L</span> <span word="intersects">intersects</span> <span word="one">one</span> <span word="of">of</span> <span word="these">these</span> <span word="planes">planes</span> <span word="in">in</span> <span word="a">a</span> <span word="single">single</span> <span word="point">point</span>,</p><p> <span word="what">what</span> <span word="is">is</span> <span word="the">the</span> <span word="least">least</span> <span word="number">number</span> <span word="of">of</span> <span word="these">these</span> <span word="n">n</span> <span word="planes">planes</span> <span word="that">that</span> <span word="L">L</span> <span word="could">could</span> <span word="intersect">intersect</span>?</p><p> <span word="n">n</span> <span word="n">n</span>-1 <span word="n">n</span>-2 <span word="n">n</span>/2/2</p><p> 【解析】只会有一个和插入的平面是平行的，非平行即相交。正确答案选择 <span word="B">B</span>。</p><p> 2. <span word="Triangles">Triangles</span> 三角形</p><p> ① 勾股定理：<span word="a">a</span>2+<span word="b">b</span>2=<span word="c">c</span>2</p><p> ② 构成三角形的条件：两边之和大于第三边。</p><p> ③ 三角形内部边和角的关系：大边对大角。</p><p> 3. <span word="Quadrilaterals">Quadrilaterals</span> 四边形</p><p> ① <span word="parallelogram">parallelogram</span> : 面积=<span word="a">a</span> 周长=2</p><p> ② <span word="rectangle">rectangle</span> : 面积=<span word="a">a</span> 周长=2</p><p> ③ <span word="square">square</span> : 面积=<span word="a">a</span>2 ; 周长=4<span word="a">a</span></p><p> ④ <span word="trapezoid">trapezoid</span> : 面积=<span word="h">h</span>/2</p><p> 4. <span word="Circles">Circles</span> 圆</p>
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