如图已知三棱锥的底面是直角三角形直角边长分别为3和4过直角顶点的侧棱长为4且垂直于底面该三棱锥的主视图是abcd——青夏教育 Sketch Coloring Page

如图已知三棱锥的底面是直角三角形直角边长分别为3和4过直角顶点的侧棱长为4且垂直于底面该三棱锥的主视图是abcd——青夏教育 Template

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anonymous

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sketch #3554 Dr. House by Carrieann Benthem

anonymous

anonymous
sketch #3554 Dr. House by Carrieann Benthem

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anonymous

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sketch #4915 Marshall Lee Gopal Gopi

anonymous

anonymous
sketch #4915 Marshall Lee Gopal Gopi

sketch #120 a pretty flower

Carly Kelly
sketch #120 a pretty flower

sketch #5160 Marilyn Monroe by Muhammet Karadoğan

anonymous

anonymous
sketch #5160 Marilyn Monroe by Muhammet Karadoğan

sketch #1430

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sketch #5066 Rey Helado by Gleny Acevedo

anonymous

anonymous
sketch #5066 Rey Helado by Gleny Acevedo

sketch #542 life

anonymous

anonymous
sketch #542 life

sketch #3290 Calvin and Hobbes by অনন্ত জলিল

anonymous

anonymous
sketch #3290 Calvin and Hobbes by অনন্ত জলিল

sketch #3760 PSY by Juvenilia Alexandrino

anonymous

anonymous
sketch #3760 PSY by Juvenilia Alexandrino

sketch #3250 Lonely cat Lars Tunebo

anonymous

anonymous
sketch #3250 Lonely cat Lars Tunebo

sketch #4287 eye

anonymous

anonymous
sketch #4287 eye

sketch #126

Chris Shrimp Lonsdale
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sketch #3327 Megaman by Abdelwahab Haik

anonymous

anonymous
sketch #3327 Megaman by Abdelwahab Haik

sketch #3659 Portrait by Mari Falcsik

anonymous

anonymous
sketch #3659 Portrait by Mari Falcsik

sketch #953

anonymous

anonymous
sketch #953

sketch #2476 Asuna from SAO by sketchmaster

sketchmaster
sketch #2476 Asuna from SAO by sketchmaster

sketch #2818 Hellboy by يآآسر محمد

يآآسر محمد
sketch #2818 Hellboy by يآآسر محمد

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anonymous

anonymous
sketch #3457

sketch #1226 the man

anonymous

anonymous
sketch #1226 the man

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anonymous

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sketch #3483 Ginger

Sarah Nila
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sketch #3469

anonymous

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sketch #3532 Angel by Geneval Mendes

anonymous

anonymous
sketch #3532 Angel by Geneval Mendes

tomski如图已知三棱锥的底面是直角三角形直角边长分别为3和4过直角顶点的侧棱长为4且垂直于底面该三棱锥的主视图是abcd——青夏教育 coloring

正三棱锥的高是多� 百度经验 sketch template

如图已知三棱锥的底面是直角三角形直角边长分别为3和4过直角顶点的侧棱长为4且垂直于底面该三棱锥的主视图是ABCD——青夏教育 sketch template

已知三棱锥的三视图如右图所示其中侧视图为直角三角形俯视图为等腰直角三角形则此三棱锥的体积等于 A． B． C． D．题目和参考 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三棱锥P ABC中，AB=BC=2√ 2，PA=PB=PC=AC=4，O为AC的中点（1）证明：PO⊥ 平面ABC；（2）若点M在棱 sketch template

如图已知三棱锥的底面是直角三角形直角边长分别为3和4过直角顶点的侧棱长为4且垂直于底面该三棱锥的主视图是ABCD——青夏教育 sketch template

三棱锥专题 Word文档在线阅读与下载免费文档 sketch template

一个三棱锥的各个面均为正三角形以每个面的中心为顶点构成一个新三棱锥若新三棱锥体积为2求原三棱锥体百度知道 sketch template

已知三棱锥P ABC中顶点P在底面的射影O是三角形ABC的内心关于这个三棱锥有三个�题�侧棱PA=PB=PC�侧棱PAPBPC两两 sketch template

14． 三棱锥P ABC的四个顶点点在同一球面上若PA⊥底面ABC底面ABC是直角三角形PA=2 AC=BC=1则此球的表面积为 sketch template

如图所示在三棱锥P ABC中PA⊥平面ABC E为AC的中点 1求异面直线BE与PC所成角的余弦值 2求二面角P BE C sketch template

下面有四个�题1各个侧面都是等腰三角形的棱锥是正棱锥2三条侧棱都相等的棱锥是正棱锥3底面是正三角形的棱锥是正三棱锥4 sketch template

如图，已知正三棱锥P ABC的侧面是直角三角形，PA=6，顶点P在平面ABC内的正投影为点D，D在平面PAB内的正投影为点E，连接PE并延长交 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已知四棱锥P ABCD中底面ABCD是直角梯形ABCDABC=45°DC=1AB=2PA平面ABCDPA=1 1求证 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

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ABCDQ为AD的中点PA=PD=2 sketch template

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，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

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ABCDPA=1 1求证 sketch template

如图已知四棱锥P ABCD的底面为直角梯形AB∥CD∠DAB=90°PA⊥底面ABCD且PA=AD=DC=12AB=1M是PB的 sketch template

如图所示四棱锥P ABCD的底面ABCD是边长为a的正方形侧棱PA=a PB=PD=a则它的5个面中互相垂直的面有对——青夏教育 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ABCDPA=1 1求证 sketch template

如图斜三棱柱ABC A1B1C1的底面是Rt ABC∠A＝90 °且BC1⊥AC作C1 H⊥底面ABC垂足为H�试判断H点的位置 sketch template

如图已知四棱锥S ABCD的底面是直角梯形AB∥DC∠DAB=90°SA⊥底面ABCD且SA=AD=DC=12AB=1M是SB的中点 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

题目如图四棱锥的底面是矩形点为的中点与交于点Ⅰ求异面直线与所成角的余弦值Ⅱ求证Ⅲ求直线与平面所成角的正弦值 sketch template

如图已知四棱锥S ABCD的底面是直角梯形AB∥DC∠DAB=90°SA⊥底面ABCD且SA=AD=DC=12AB=1M是SB的中点 sketch template

四棱锥 360百� sketch template

如图斜三棱柱中面是菱形侧面求证1 2求点到平面的距离——青夏教育精英家教�—— sketch template

19． 已知斜三棱柱ABC A1B1C1的高考资^源�侧面A1ACC1与底面ABC垂直∠ABC＝90°BC＝2AC＝2且AC 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ABCDPA=1 1求证 sketch template

19． 已知斜三棱柱ABC A1B1C1的高考资^源�侧面A1ACC1与底面ABC垂直∠ABC＝90°BC＝2AC＝2且AC sketch template

如图在三棱锥P ABC中PA⊥平面ABC ABC为正三角形且PA=AB=2则三棱锥P ABC的侧视图面积为33．题目和参考答案 sketch template

画出如图所示的底面为直角三角形的直棱柱的表面展开图并计算它的侧面积和表面积——青夏教育精英家教�—— sketch template

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