是不是底面是正方形的四棱锥就是正四棱锥？ 知乎 Sketch Coloring Page

是不是底面是正方形的四棱锥就是正四棱锥？ 知乎 Template

Background image: Hide Show

View Larger Image Image Credit: zhihu.com

please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

sketch #1562 Shaking red horse

anonymous

anonymous
sketch #1562 Shaking red horse

sketch #5230

anonymous

anonymous
sketch #5230

sketch #2476 Asuna from SAO by sketchmaster

sketchmaster
sketch #2476 Asuna from SAO by sketchmaster

sketch #3483 Ginger

Sarah Nila
sketch #3483 Ginger

sketch #3413 Link by Dã Tr� ng

anonymous

anonymous
sketch #3413 Link by Dã Tr� ng

sketch #523 the man

anonymous

anonymous
sketch #523 the man

sketch #3516

Laura Agapi Asnicar
sketch #3516

sketch #3321 Baby Mirella Flowers

anonymous

anonymous
sketch #3321 Baby Mirella Flowers

sketch #20690

anonymous

anonymous
sketch #20690

sketch #5203 Alien vs. Predator Ani Chachua

anonymous

anonymous
sketch #5203 Alien vs. Predator Ani Chachua

sketch #3092

anonymous

anonymous
sketch #3092

sketch #3385

anonymous

anonymous
sketch #3385

sketch #4888

anonymous

anonymous
sketch #4888

sketch #3063

anonymous

anonymous
sketch #3063

sketch #2806 Puppy love by Sam Torres

Sam Torres
sketch #2806 Puppy love by Sam Torres

sketch #5208 Alf by David Rossien

anonymous

anonymous
sketch #5208 Alf by David Rossien

sketch #4987

anonymous

anonymous
sketch #4987

sketch #12 my bear

Tom Kelly
sketch #12 my bear

sketch #3617 D from Gorillaz by Joselyne Angel Gormaz

anonymous

anonymous
sketch #3617 D from Gorillaz by Joselyne Angel Gormaz

sketch #5219 Zayn Malik by Amila Madhushanaka

anonymous

anonymous
sketch #5219 Zayn Malik by Amila Madhushanaka

sketch #5224

anonymous

anonymous
sketch #5224

sketch #2740 Monster by Gabriela Segura

Gabriela Segura
sketch #2740 Monster by Gabriela Segura

sketch #4945

anonymous

anonymous
sketch #4945

sketch #4796

anonymous

anonymous
sketch #4796

sketch #5127 Captain America by Mark Phillips

anonymous

anonymous
sketch #5127 Captain America by Mark Phillips

sketch #4549

anonymous

anonymous
sketch #4549

sketch #855

Laura Agapi Asnicar
sketch #855

sketch #5209

anonymous

anonymous
sketch #5209

sketch #3639

anonymous

anonymous
sketch #3639

sketch #5048

anonymous

anonymous
sketch #5048

tomski是不是底面是正方形的四棱锥就是正四棱锥？ 知乎 coloring

是不是底面是正方形的四棱锥就是正四棱锥？ 知乎 sketch template

是不是底面是正方形的四棱锥就是正四棱锥？ 知乎 sketch template

81 基本立体图形1 棱柱、棱锥、棱台湛江贵哥讲数学博客园 sketch template

是不是底面是正方形的四棱锥就是正四棱锥？ 知乎 sketch template

在四棱锥中其底面是正方形一条侧棱垂直于底面不通过此棱的一个侧面与底面所成的二面角为45°且最长的侧棱长为15cm则棱锥的高为 sketch template

正三棱锥 知乎 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

正四棱锥图册 360百� sketch template

空间几何体三视图 Word文档在线阅读与下载无忧文档 sketch template

为什么正四面体顶点在底面的投影在底面三角形的中心�？ 知乎 sketch template

如图是一个四棱柱被一个平面所截的几何体，底面是正方形，M是的中点， sketch template

百度教育 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

【高中数学�由一个正方体引�的求空间几何体的外接球 知乎 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

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

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

如图所示四棱锥P ABCD中底面ABCD是正方形PA⊥底面ABCDPA=AB=2点F是PB的中点点E在棱BC上移动．1当E为 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

7．一个四棱锥的底面为正方形其三视图如图所示则这个四棱锥的体积是 A． B． C． D．——青夏教育精英家教�—— sketch template

初学讲义之高中数学二十：简单几何体 知乎 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

4．如图ABCD是正方形PA平面AC且PA=AB 1求二面角B PA D的度数 2求二面角B C的度数 3求 sketch template

19．已知四棱锥P ABCD的底面为正方形PA⊥底面ABCDEF分别为ABPD的中点PA=a二面角P CD B为45° 1 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四棱锥的底面是边长为4的正方形在底面上的射影落在正方形内的长为到的距离分别为和是的中点． Ⅰ求证平面底面 Ⅱ设 sketch template

已知正四棱锥的底面边长是，侧棱长是，则该正四棱锥的表面积为（） A B C D 百度教育 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

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

给出以下结论： �有两个侧面是矩形的棱柱是直棱柱； �有两个相邻侧面是矩形的棱柱是正棱柱； �各侧面都是正方形的棱柱一定是正棱柱； �一个三 sketch template

在四棱台ABCD A1B1C1D1中上下底面均为正方形则DD1与BB1所在直线是 A．相交直线 B．平行直线 C 不垂直的异面 sketch template

14= 15如图四棱柱ABCD―A1B1C1D1的底面ABCD为正方形侧棱与底面边长均为2a——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

如图，在四棱锥P ABCD中，底面ABCD是边长为的正方形，并且PD=，PA=PC=．（1）求证：PD⊥平面ABCD；（2）求异面直线PB与 sketch template

free web stats