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 Coloring Page

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 Template

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sketch #3425 &#;Tonari no Kaibutsu-kun&#; by Betty Marie Melzer

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sketch #3425 &#;Tonari no Kaibutsu-kun&#; by Betty Marie Melzer

sketch #1953 愛鼠繪

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anonymous
sketch #1953 愛鼠繪

sketch #3769 The Beatles by يآآسر محمد

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sketch #3769 The Beatles by يآآسر محمد

sketch #3810

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anonymous
sketch #3810

sketch #5179 Audrey Hepburn by 陳一夫

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sketch #5179 Audrey Hepburn by 陳一夫

sketch #5182 Inuyasha by Sepp Herberger

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sketch #5182 Inuyasha by Sepp Herberger

sketch #873

Laura Agapi Asnicar
sketch #873

sketch #3447 Hidan (Akatsuki) by ßeyza Karaca

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sketch #3447 Hidan (Akatsuki) by ßeyza Karaca

sketch #3398 Sharingan by حيرتني بصمتها

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sketch #3398 Sharingan by حيرتني بصمتها

sketch #3637

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anonymous
sketch #3637

sketch #5341 Rafael Nadal by Alina Danielle

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sketch #5341 Rafael Nadal by Alina Danielle

sketch #21243

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sketch #21243

sketch #3290 Calvin and Hobbes by অনন্ত জলিল

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sketch #3290 Calvin and Hobbes by অনন্ত জলিল

sketch #5173 Super Meat Boy by Zorka Edding Giustinianovic

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sketch #5173 Super Meat Boy by Zorka Edding Giustinianovic

sketch #33 Flutter-bys

Rachel Roe
sketch #33 Flutter-bys

sketch #5122

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anonymous
sketch #5122

sketch #5263

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sketch #5263

sketch #5185

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sketch #5185

sketch #3250 Lonely cat Lars Tunebo

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sketch #3250 Lonely cat Lars Tunebo

sketch #2747

Cody Brandoon
sketch #2747

sketch #4834 Aayla Secura by Nînâ Yämâhä

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sketch #4834 Aayla Secura by Nînâ Yämâhä

sketch #4414

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sketch #4414

sketch #4736 Naruto by Wellen Lima

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sketch #4736 Naruto by Wellen Lima

sketch #2672

Fabio Sala
sketch #2672

sketch #5434

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anonymous
sketch #5434

sketch #5228 Rin & Len by Mark Phillips

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sketch #5228 Rin & Len by Mark Phillips

sketch #5236 Edward Scissorhands by Ronin Ronin

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sketch #5236 Edward Scissorhands by Ronin Ronin

sketch #3513

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sketch #3513

sketch #2901 Smurf by Ronny Alexander Nikolaevich

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sketch #2901 Smurf by Ronny Alexander Nikolaevich

sketch #4891 Pikachu by Resul Danacı

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sketch #4891 Pikachu by Resul Danacı

tomski6．如图在底面为直角梯形的四棱锥 abcdbc=6 Ⅰ求证 coloring

如图，在直四棱柱中，底面为直角梯形，，，，为上一点高途 sketch template

如图，已知多面体的底面为直角梯形，四边形为矩形，且高途 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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，在直四棱柱中，底面为梯形，，，其中，，，是的高途 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

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，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

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

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，四棱锥的底面是直角梯形，，平面是的中点，与平面交于点 sketch template

已知四棱柱ABCD A1BlClDl的侧棱AA1垂直于底面底面ABCD为直角梯形AD∥BCAB ⊥BCAD=AB=AA1=2BC sketch template

梯形棱柱千图� 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

20．如图在四棱锥p ABCD中底面ABCD是一直角梯形∠BAD=90°AD∥BCAB=BC=aAD=2a且PA⊥底面ABCD sketch template

19．如图所示四棱锥P ABCD中底面ABCD为直角梯形点E在棱PA上且PE=2EA 1 求异面直线PA与CD所成的角 2 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

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PA⊥底面ABCD且底面ABCD为直角梯形AB∥CD∠BAD=90°PA=AD=AB=1CD=2E为 sketch template

19． 四棱锥S ABCD的底面是直角梯形侧面SBC⊥底面ABCD Ⅰ由SA的中点E作底面的垂线EH试确定垂足H的位置 Ⅱ求 sketch template

已知正三棱锥P－ABC的底面边长为6，其内切球的半径为1，则此三棱锥的高为． sketch template

18．如图在四棱锥P ABCD中侧面PAD⊥底面ABCD侧棱PA＝PD=底面ABCD为直角梯形 其中BC∥ADAB⊥ADAD sketch template

如图，在三棱柱ABC A1B1C1中，底面ABC是以AC为斜边的等腰直角三角形，侧面AA1C1C为菱形，点A1在底面上的投影为AC的中点D，且 sketch template

已知四棱锥P ABCD的底面为直角梯形AB∥DC∠DAB=90°PA⊥底面ABCD且PA=AD=DC=12AB=1．Ⅰ证明面 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

如图所示四棱锥P ABCD的底面ABCD为直角梯形且AD∥BCAD⊥ABE是PC的中点PA=BC=2AD=1AB=2∠PAB 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，在平行六面体ABCD A 1B 1C 1D 1中，底面是边长为2的正方形，若∠ 1AB=∠ 1AD=60^° ，且A 1A 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，在四棱锥中，底面是边长为2的正方形，侧面是正三角形，侧面底面 ，平面平面 sketch template

如图在斜棱柱ABC A1B1C1中底面为正三角形侧棱长等于底面边长且侧棱与底面所成的角为60°顶点B1在底面ABC上的射影O恰好是 sketch template

如图在底面是直角梯形的四棱锥S ABCD中面ABCD SA=AB=BC=1AD= Ⅰ求四棱锥S ABCD的体积 Ⅱ求面SCD sketch template

如图在斜棱柱ABC A1B1C1中底面为正三角形侧棱长等于底面边长且侧棱与底面所成的角为60°顶点B1在底面ABC上的射影O恰好是 sketch template

如图在四棱锥中 BC⊥ABCD⊥ADBC=CD=PA=a Ⅰ求证平面PBD⊥平面PAC Ⅱ求四棱锥P ABCD的体积 sketch template

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