6．四棱锥p Abcd的底面为正方形pd底面abcdpd＝ad＝1设点c到平面pab 的距离为点b到平面pac的距离为则 A Sketch Coloring Page

6．四棱锥p Abcd的底面为正方形pd底面abcdpd＝ad＝1设点c到平面pab 的距离为点b到平面pac的距离为则 A Template

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tomski6．四棱锥p abcd的底面为正方形pd底面abcdpd＝ad＝1设点c到平面pab 的距离为点b到平面pac的距离为则 coloring

如图在四棱锥P ABCD中PA⊥平面ABCD底面ABCD为平行四边形且AB=1BC=2EF分别为ADBC的中点．I求证 sketch template

正四棱锥图册 360百� sketch template

6．四棱锥P ABCD的底面为正方形PD底面ABCDPD＝AD＝1设点C到平面PAB 的距离为点B到平面PAC的距离为则 A sketch template

在四棱锥P ABCD中底面ABCD是矩形PA=AD=4AB=2PB=25PD=42．E是PD的中点．1求证AE⊥平面PCD sketch template

已知四棱锥P ABCD的底面是边长为6的正方形侧棱PA⊥底面ABCD且PA=8则该四棱锥的体积是 A．288B．96C．48D sketch template

如图，四棱锥的底面是正方形，底面，点在棱上．高途 sketch template

四棱锥P ABCD的底面是正方形 Word文档在线阅读与下载无忧文档 sketch template

$如图所示四棱锥P ABCD中PA⊥平面ABCDPB与底面所成的角为$frac{π}{4}$底面ABCD为直角梯形∠ABC=∠BAD sketch template$

【题目�如图，四棱锥P ABCD的底面为正方形，PD⊥底面ABCD．设平面PAD与平面PBC的交线为l．（1）证明：l⊥平面PDC；（2）已知 sketch template

$如图四棱锥P ABCD中底面ABCD为矩形PA⊥平面ABCDPA=AB=2AD=4E为线段PD上一动点记$frac{PE sketch template$

19．已知四棱锥P ABCD的底面ABCD的边长为1的正方形 PD⊥底面ABCD且PD=1 1求证BC//平面PAD 2若 sketch template

如图在四棱锥P ABCD中底面ABCD是以AC为直径的圆的内接四边形AC⊥BDF是PC的中点∠BAC=60°PD⊥平面ABC．1 sketch template

$底面边长和侧棱长均为2的正四棱锥的体积为$frac{4sqrt{2}}{3}$．题目和参考答案——青夏教育精英家教�—— sketch template$

如图四棱锥P ABCD中底面ABCD是边长为a的正方形PD=aPA=PC=a 1求证PD⊥平面ABCD 2求异面直线PB 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

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

如图四棱锥P ABCD的底面ABCD是正方形PA⊥平面ABCDPA=AB=2．1若EF分别是PCAD的中点证明EF∥平面 sketch template

正四棱柱怎么画三棱柱怎么画正六棱柱简笔画大山谷图库 sketch template

14．已知正四棱锥P ABCD的高为4侧棱与底面所成的角为600则该正四棱锥的侧面积是．——青夏教育精英家教�—— sketch template

已知四棱锥P ABCD它的底面是边长为a的菱形且∠ABC＝120°PC⊥平面ABCD又PC＝aE为PA的中点． 1求证平面 sketch template

已知四棱锥P ABCD的侧棱PA⊥平面ABCD底面ABCD为正方形且AB=AP=aI若EF分别是PABC的中点证明EF//平面 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

已知六棱锥P ABCDEF其中底面ABCDEF是正六边形点P在底面的投影是正六边形的中心底面边长为2cm侧棱长为3cm求六棱锥P sketch template

百度教育 sketch template

已知四棱锥的底面是矩形底面点分别是棱中点则 �棱与所在直线垂直 �平面与平面垂直 �的面积大于的面积 �直线与直线是异面直线以上结论 sketch template

6．如图在底面为直角梯形的四棱锥 ABCDBC=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底面是菱形的四棱锥 P ABCD中∠ABC=60°PA⊥平面ABCD点EFG分别为CDPDPB的中点．PA=AD=2 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

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

已知四棱锥P ABCD的底面ABCD是边长为2的正方形PD⊥底面ABCDEF分别为棱BCAD的中点．Ⅰ求证DE∥平面PFBⅡ sketch template

已知四棱锥P ABCD的底面是边长为6的正方形侧棱PA⊥底面ABCD且PA=8则该四棱锥的体积是 A．288B．96C．48D sketch template

已知四棱锥pabcd中，底面四边形为正方形，侧面pdc为正三角形，且pdc⊥abcd，e为pc中点。 sketch template

四棱锥P ABCD的底面是边长为3的正方形PD⊥平面ABCD．异面直线AD与PB所成角为60°E为线段PC上一点PE=2EC．求二面角P sketch template

已知四棱台ABCD A1B1C1D1的上下底面分别是边长为2和4的正方形AA1=4且AA1⊥底面ABCD点P为DD1的中点．I求证 sketch template

百度教育 sketch template

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