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 Coloring Page

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 Template

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sketch #5070 The Rolling Stones by Roby Krdoso

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sketch #5070 The Rolling Stones by Roby Krdoso

sketch #4475 Daft Punk by Reggie Garcia

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sketch #4475 Daft Punk by Reggie Garcia

sketch #846 cat fridayz z z zzzz zz

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sketch #846 cat fridayz z z zzzz zz

sketch #3637

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sketch #3637

sketch #1652

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sketch #1652

sketch #4682 Elvis Presley by Nassim Nouri

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sketch #4682 Elvis Presley by Nassim Nouri

sketch #4589

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sketch #4589

sketch #3517 Scratch from Ice Age by VlAd Craciun

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sketch #3517 Scratch from Ice Age by VlAd Craciun

sketch #3476 Happy valentines day! Simona Honigmelone

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sketch #3476 Happy valentines day! Simona Honigmelone

sketch #5438

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sketch #5438

sketch #4971 Rhianna by Isaiah Fantisy Godlike

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sketch #4971 Rhianna by Isaiah Fantisy Godlike

sketch #2536

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sketch #2536

sketch #5330 Frozen by Amanda Kachadurian

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sketch #5330 Frozen by Amanda Kachadurian

sketch #3506 Goku by Saul Mansanares

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sketch #3506 Goku by Saul Mansanares

sketch #5093 Pedro Henrique Jordan Coquet

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sketch #5093 Pedro Henrique Jordan Coquet

sketch #1145

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sketch #1145

sketch #3273

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sketch #3273

sketch #3608 Skeleton king by Thania Arruda

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sketch #3608 Skeleton king by Thania Arruda

sketch #4867 Johnny Depp Ronin Ronin

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sketch #4867 Johnny Depp Ronin Ronin

sketch #5210 I love you by Saul Mansanares

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sketch #5210 I love you by Saul Mansanares

sketch #3217

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sketch #3217

sketch #5260

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sketch #5260

sketch #1183

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sketch #1183

sketch #2029 GOD 'S PROMISE ...

Marlyn Ortiz
sketch #2029 GOD 'S PROMISE ...

sketch #3617 D from Gorillaz by Joselyne Angel Gormaz

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sketch #3617 D from Gorillaz by Joselyne Angel Gormaz

sketch #3765 Happy easter!

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sketch #3765 Happy easter!

sketch #4852

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sketch #4852

sketch #5050

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sketch #5050

sketch #4887 Jessica Rabbit by Garima Taneja

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sketch #4887 Jessica Rabbit by Garima Taneja

sketch #2150 batman

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sketch #2150 batman

tomski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 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

四棱锥的直观图正四棱锥的直观图画正四棱锥直观图第2页大山谷图库 sketch template

如图所示，四棱锥的底面是正方形，每条侧棱的长都是底高途 sketch template

四棱锥图片直观图三棱锥和四棱锥图片四棱锥图片素描图片大山谷图库 sketch template

如图所示正四棱锥P ABCD的各棱长均为13MN分别为PABD上的点且PM∶MA=BN∶ND=5∶8 1求证直线MN∥平面 sketch template

四棱锥三视图图片五棱锥三视图图片一个正四棱锥的三视图第2页大山谷图库 sketch template

如图1由正四棱锥P ABCD和正四棱柱ABCD A1B1C1D1所组成的几何体的三视图如图2．1求证PC⊥平面A1BD2求点P到 sketch template

百度教育 sketch template

如图四棱锥P ABCD它的正视图如图1是等腰三角形侧视图如图2是等腰直角三角形俯视图如图3是正方形ABCD各长度如图 sketch template

9．如图已知正四棱锥S ABCD的侧棱长为底面边长为E是SA的中点则异面直线BE与SC所成角的大小是 A．90° B．60° C．45 sketch template

如图正四棱锥S ABCD的所有棱长都相等过底面对角线 AC作平行于侧棱SB的截面交SD于E 1求AB与SC所成角的大小 2求 sketch template

一个四棱锥的底面为正方形其直观图与三视图如图所示则二面角P DC A的正弦值为 ABCD——青夏教育精英家教�—— sketch template

4．如图已知四边形ABCD是平行四边形点P是平面 ABCD外的一点则在四棱锥P ABCD中M是PC 的中点在DM上取一点G过G和 sketch template

如图已知四棱锥P ABCD中底面ABCD是直角梯形ABCDABC=45°DC=1AB=2PA平面ABCDPA=1 1求证 sketch template

如图所示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以上均不对题目和参考答案——青夏教育精英 sketch template

12．如图所示在四棱锥P ABCD中底面ABCD是矩形PA＝AB＝2BC＝a又侧棱PA⊥底面ABCD 1当a为何值时BD⊥ sketch template

17． 如图所示在四棱锥P ABCD中∠ABC＝∠ACD＝90°∠BAC＝∠CAD＝60°PA⊥平面ABCDE为PD的中点PA 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

17． 如图所示在四棱锥P ABCD中∠ABC＝∠ACD＝90°∠BAC＝∠CAD＝60°PA⊥平面ABCDE为PD的中点PA 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

一个三棱锥的三视图如图所示则该三棱锥的体积是 A4 B C D8——青夏教育精英家教�—— sketch template

已知，如图四棱锥中，，为平行四边形，，平面，，分别高途 sketch template

四棱锥的侧视图四棱锥的三视图正视图侧视图俯视图第7页大山谷图库 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=1M是SB的中点 sketch template

如图所示正四棱锥P ABCD的各棱长均为13MN分别为PABD上的点且PM∶MA=BN∶ND=5∶8 1求证直线MN∥平面 sketch template

19．如图所示四棱锥P ABCD的底面为直角梯形⊥平面E为AB中点 1求证平面⊥平面 2求直线与平面所成角的正弦值 sketch template

如图已知两个正四棱锥P ABCD与Q ABCD的高分别为1和2AB=4 � 证明PQ⊥平面ABCD � 求异面直线AQ与PB所成的角 sketch template

如图已知两个正四棱锥P ABCD与Q ABCD的高分别为1和2AB=4 � 证明PQ⊥平面ABCD � 求异面直线AQ与PB所成的角 sketch template

19．如图所示四棱锥P ABCD的底面为直角梯形⊥平面E为AB中点 1求证平面⊥平面 2求直线与平面所成角的正弦值 sketch template

四棱柱三视图图片正三棱锥三视图四棱柱图片大山谷图库 sketch template

一个四棱锥的三视图如图所示其中主视图是腰长为1的等腰直角三角形则这个几何体的体积是 A．12B．1C．32D．2——青夏教育精英家教�—— sketch template

四棱锥的俯视图四棱锥的三视图四棱锥的侧视图第2页大山谷图库 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

三棱锥及其侧视图、俯视图如图所示设，分别为线段，的中点，为线段上的点，且（1）证明：为线段的中点；（2）求二面角的余弦值 – 新东方在线�络课堂 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

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