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 Coloring Page

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 Template

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sketch #389

anonymous

anonymous
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sketch #5167

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sketch #5100 Shadow by An Nguyen

anonymous

anonymous
sketch #5100 Shadow by An Nguyen

sketch #3367 Ichigo by Szymon Broszczak

anonymous

anonymous
sketch #3367 Ichigo by Szymon Broszczak

sketch #2457 cool beans brother

sketchmaster
sketch #2457 cool beans brother

sketch #4830

anonymous

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sketch #286 sun

anonymous

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sketch #286 sun

sketch #3517 Scratch from Ice Age by VlAd Craciun

anonymous

anonymous
sketch #3517 Scratch from Ice Age by VlAd Craciun

sketch #3413 Link by Dã Tr� ng

anonymous

anonymous
sketch #3413 Link by Dã Tr� ng

sketch #2624 Pikachu by sketchmaster

sketchmaster
sketch #2624 Pikachu by sketchmaster

sketch #3753

anonymous

anonymous
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sketch #2486 Face by sketchmaster

sketchmaster
sketch #2486 Face by sketchmaster

sketch #4053

anonymous

anonymous
sketch #4053

sketch #1221 səhər
abbasova
gözəi
qız
hamı
məni çox
seve
anam da
çox
sevir

anonymous

anonymous
sketch #1221 səhər abbasova gözəi qız hamı məni çox seve anam da çox sevir

sketch #4700

anonymous

anonymous
sketch #4700

sketch #4903 Naruto & Kurama by Fatér Szilvia

anonymous

anonymous
sketch #4903 Naruto & Kurama by Fatér Szilvia

sketch #1455 donara

Donara Smbatyan
sketch #1455 donara

sketch #778

Benjo Arellano
sketch #778

sketch #4383 4383

anonymous

anonymous
sketch #4383 4383

sketch #3042 Tobi by Mirnes Sinanovic

anonymous

anonymous
sketch #3042 Tobi by Mirnes Sinanovic

sketch #5114 Doraemon by Carrieann Benthem

anonymous

anonymous
sketch #5114 Doraemon by Carrieann Benthem

sketch #3337 Uryuu Minene by Michael Angcay

anonymous

anonymous
sketch #3337 Uryuu Minene by Michael Angcay

sketch #1170

anonymous

anonymous
sketch #1170

sketch #5079 SketchToy Pencil by Sarah Prieto

anonymous

anonymous
sketch #5079 SketchToy Pencil by Sarah Prieto

sketch #84

Chris Shrimp Lonsdale
sketch #84

sketch #3483 Ginger

Sarah Nila
sketch #3483 Ginger

sketch #3059

anonymous

anonymous
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sketch #3247 Thor by Juvenilia Alexandrino

anonymous

anonymous
sketch #3247 Thor by Juvenilia Alexandrino

sketch #5020 Stitch by Hina Ali

anonymous

anonymous
sketch #5020 Stitch by Hina Ali

sketch #3651 Istanbul by DjDarío GT

anonymous

anonymous
sketch #3651 Istanbul by DjDarío GT

tomski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 coloring

如图在四棱锥P ABCD中底面ABCD为等腰梯形AB∥CDAD=BC=2对角线AC⊥BD于O∠DAO=60°且PO⊥平面ABCD 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P—ABCD中PA⊥底面ABCDAB⊥ADAC⊥CD∠ABC=60°PA=AB=BCE是PC的中点1证明AE sketch template

如图在四棱锥P ABCD中侧面底面ABCD底面ABCD是菱形侧面PAD是等边三角形且PB与面PAD所成角为1求四棱锥P sketch template

如图，在四棱锥P ABCD中，底面ABCD是边长为1的正方形，PA⊥底面ABCD，点M是棱PC的中点，AM⊥平面PBD．（1）求四棱锥P sketch template

百度教育 sketch template

百度教育 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ABCDSD=DC点E是SC的中点作EF⊥SB交SB于点F．1 sketch template

【题目� 如图，在四棱锥 P ABCD 中，底面 为正方形， PD ⊥平面，＝ AD 百度教育 sketch template

百度教育 sketch template

如图所示在四棱锥P ABCD中底面ABCD为菱形且∠DAB=60°PA=PDM为CD的中点BD⊥PM．1求证平面PAD⊥平面 sketch template

17． 如图所示在四棱锥P ABCD中∠ABC＝∠ACD＝90°∠BAC＝∠CAD＝60°PA⊥平面ABCDE为PD的中点PA sketch template

如图在四棱锥P ABCD中底面ABCD是边长为2的正方形PA=PBPA⊥PBF为CE上的点且BF⊥平面PAC．Ⅰ求证平面 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

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

2013•�龙江二模如图在四棱锥P ABCD中侧棱PA丄底面ABCD底面ABCD为矩形E为PD上一点AD=2AB=2AP=2PE sketch template

在正四棱锥P ABCD中PA＝2直线PA与平面ABCD所成的角为60°求正四棱锥P ABCD的体积V．题目和参考答案——青夏教育精英家教�—— sketch template

如图四棱锥P ABCD中PD⊥平面ABCDPD=DC=BC=1AB=2AB∥DC∠BCD=900 1求证PC⊥BC 2求 sketch template

D 如图，在四棱锥P ABCD中，底面ABCD是菱形，且PB=PD．（1）求证：BD⊥PC；（2）若平面PBC与平面PAD的交线为l，求证 sketch template

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

如图四棱锥P ABCD中PD⊥平面ABCD底面ABCD是正方形PD=AB=2E为PC中点．1求证DE⊥平面PCB2求点C sketch template

如图在四棱锥P ABCD中底面ABCD是边长为2的正方形PA=PBPA⊥PBF为CE上的点且BF⊥平面PAC．Ⅰ求证平面 sketch template

如图在底面是菱形的四棱锥 P ABCD中∠ABC=60°PA⊥平面ABCD点EFG分别为CDPDPB的中点．PA=AD=2 sketch template

在四棱锥P ABCD中底面ABCD是边长为a的正方形 PA⊥平面ABCD且PA = 2AB 1求证平面PAC⊥平面PBD 2 sketch template

如图在四棱锥P ABCD中ABCD是菱形PA⊥平面ABCD1求证BD⊥PC2若平面PBC与平面PAD的交线为l求证BC∥ sketch template

如图在四棱锥P ABCD中PA⊥底面ABCDAD∥BCAB⊥ADAC与BD交于点OPA=3AD=2AB=23BC=6．Ⅰ sketch template

19．如图在四棱锥P ABCD中底面ABCD是矩形MN分别为PABC的中点 PD⊥平面ABCD且PD=AD=CD=1 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

如图在四棱锥P ABCD中PA⊥平面ABCD四边形ABCD为直角梯形AD//BC且AD&gtBC∠DAB=∠ABC=90°PA=AB sketch template

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

百度教育 sketch template

百度教育 sketch template

如图在三棱柱ABC A1B1C1中侧面AA1C1C⊥底面ABCAA1=A1C=AC=2AB=BCAB⊥BCO为AC的中点1 sketch template

百度教育 sketch template

百度教育 sketch template

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