如图，在四棱锥中，底面是梯形，，侧面是等边三角形，侧面是等腰直角三角形， Sketch Coloring Page

如图，在四棱锥中，底面是梯形，，侧面是等边三角形，侧面是等腰直角三角形， Template

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tomski如图，在四棱锥中，底面是梯形，，侧面是等边三角形，侧面是等腰直角三角形， coloring

已知四棱锥如图5 1所示，其三视图如图5 2所示，其中正视图和侧视图都是直角三角形，俯视图是矩形 1求此四棱锥的体积； 2若E是PD sketch template

如图已知四棱锥P ABCD中底面ABCD是直角梯形ABCDABC=45°DC=1AB=2PA平面ABCDPA=1 1求证 sketch template

如图所示在四棱锥S ABCD中底面ABCD是正方形侧棱SD⊥平面ABCDSD=DC点E是SC的中点作EF⊥SB交SB于点F．1 sketch template

如图在四棱锥P ABCD中底面ABCD是正方形侧面PAD⊥底面ABCD且PA=PD=AD=2EF分别为PCBD的中点．Ⅰ sketch template

四棱锥 360百� sketch template

如图，在四棱锥中，底面是梯形，， 侧面是等边三角形，侧面是等腰直角三角形， sketch template

如图，在四棱锥中，底面是菱形，，面，是棱上一动点高途 sketch template

81 基本立体图形1 棱柱、棱锥、棱台湛江贵哥讲数学博客园 sketch template

高中数学第一册上棱锥 Word文档在线阅读与下载无忧文档 sketch template

20．如图在四棱锥P ABCD中底面ABCD是菱形∠BAD=600AB=2PA=1PA⊥平面ABCD E是PC的中点F是AB的 sketch template

在四棱锥中其底面是正方形一条侧棱垂直于底面不通过此棱的一个侧面与底面所成的二面角为45°且最长的侧棱长为15cm则棱锥的高为 sketch template

正四棱锥图册 360百� sketch template

如图在四棱锥P ABCD中底面ABCD为直角梯形AD∥BC∠ADC=90°平面PAD⊥底面ABCDQ为AD的中点PA=PD=2 sketch template

如图所示在四棱锥P ABCD中底面四边形ABCD是菱形AC∩BD=O PAC是边长为2的等边三角形PB=PD=6AP=4AF．Ⅰ sketch template

初学讲义之高中数学二十：简单几何体知乎 sketch template

如图在四棱锥P ABCD中PA⊥底面ABCDAB⊥ADBC∥ADPA=AB=BC=2AD=4．1求四棱锥P ABCD的体积2 sketch template

如图已知在四棱锥P ABCD中底面ABCD是边长为4的正方形 PAD是正三角形EFG分别是PDPCBC的中点．1求证直线 sketch template

如图，在四棱锥中，底面为矩形，是等边三角形，平面底 高途 sketch template

如图在四棱锥P ABCD中底面ABCD是正方形侧面PAD⊥底面ABCD且PA⊥PDEF分别为PCBD的中点．证明1EF∥平面 sketch template

如图四棱锥P ABCD中底面四边形ABCD是正方形侧面PDC是边长为a的正三角形且平面PDC⊥底面ABCDE为PC的中点 ——青夏 sketch template

如图在底面是菱形的四棱锥 P ABCD中∠ABC=60°PA⊥平面ABCD点EFG分别为CDPDPB的中点．PA=AD=2 sketch template

如图所示在四棱锥S ABCD中底面ABCD是正方形侧棱SD⊥平面ABCDSD=DC点E是SC的中点作EF⊥SB交SB于点F．1 sketch template

如图在四棱锥P ABCD中底面ABCD是矩形侧棱PA垂直于底面EF分别是ABPC的中点 1求证CD⊥PD 2求证 sketch template

如图已知四棱锥P ABCDPA⊥平面ABCD底面ABCD为直角梯形∠A=90°且AB//CDAB=CD 1点F在线段PC上运动 sketch template

如图在四棱锥P ABCD中底面ABCD为直角梯形AB∥CD∠DAB=60°AB=AD=2CD且三角形PAD为等腰 PA=PD sketch template

如图，在四棱锥P ABCD中，侧面PAD⊥ 底面ABCD，侧棱PA=PD=√2，底面ABCD为直角梯形，其中BC//AD，AB⊥ AD，AD sketch template

19．如图在四棱锥P ABCD中底面ABCD是矩形MN分别为PABC的中点 PD⊥平面ABCD且PD=AD=CD=1 1 sketch template

6．如图在底面为直角梯形的四棱锥 ABCDBC=6 Ⅰ求证 Ⅱ求二面角的平面角的余弦值解Ⅰ如图建立坐标系则 sketch template

$如图四棱锥P ABCD中侧面PAD为等边三角形且垂直于底面ABCDAB=BC=$frac{1}{2}$AD∠BAD=∠ABC=90 sketch template$

如图四棱锥P ABCD中底面ABCD是边长为2的正方形PB⊥BCPD⊥CD且PA=2E为PD中点．1求二面角B EC A的正弦 sketch template

如图在底面是矩形的四棱锥P ABCD中PA⊥面ABCDPA=ADMN分别是PCAB的中点 1求直线PD与面ABCD所成的角 sketch template

如图，在四棱锥P ABCD中，底面ABCD是平行四边形，∠BCD=120°，侧面PAB⊥底面ABCD，PB=2√6，AB=AC=PA=2√3 sketch template

百度教育 sketch template

侧面是全等的等腰三角形的棱锥是 A．正棱锥 B．侧棱长相等的棱锥 C．斜高长相等的棱锥 D．以上均不对——青夏教育精英家教�—— sketch template

百度教育 sketch template

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