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 Coloring Page

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 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 #2735

Jorge Valero
sketch #2735

sketch #1082 Seher 6 years

anonymous

anonymous
sketch #1082 Seher 6 years

sketch #127

Johnny B. Goode
sketch #127

sketch #302

Chrystal Smith
sketch #302

sketch #5058

anonymous

anonymous
sketch #5058

sketch #3508 Medusa by Nelly Panambo

anonymous

anonymous
sketch #3508 Medusa by Nelly Panambo

sketch #5277 League of Legends champions by Sylvie Rieux

anonymous

anonymous
sketch #5277 League of Legends champions by Sylvie Rieux

sketch #5169 Iron Man by Hannah Kellogg

anonymous

anonymous
sketch #5169 Iron Man by Hannah Kellogg

sketch #4769 Finn and Jake by Neo Ʀazor

anonymous

anonymous
sketch #4769 Finn and Jake by Neo Ʀazor

sketch #674

Rachel Roe
sketch #674

sketch #3803

Laura Agapi Asnicar
sketch #3803

sketch #4835 L from Death Note by Adidtzu Ady

anonymous

anonymous
sketch #4835 L from Death Note by Adidtzu Ady

sketch #4971 Rhianna by Isaiah Fantisy Godlike

anonymous

anonymous
sketch #4971 Rhianna by Isaiah Fantisy Godlike

sketch #3523 My World My Way by Elena Artene

anonymous

anonymous
sketch #3523 My World My Way by Elena Artene

sketch #4176 Eye by Jawad Kallou

anonymous

anonymous
sketch #4176 Eye by Jawad Kallou

sketch #4942 Woman by Abbie Hayman

anonymous

anonymous
sketch #4942 Woman by Abbie Hayman

sketch #2072

anonymous

anonymous
sketch #2072

sketch #2318

anonymous

anonymous
sketch #2318

sketch #4995

anonymous

anonymous
sketch #4995

sketch #3059

anonymous

anonymous
sketch #3059

sketch #953

anonymous

anonymous
sketch #953

sketch #666

Tom Kelly
sketch #666

sketch #3755 Panda by Roberto Castro Colimil

anonymous

anonymous
sketch #3755 Panda by Roberto Castro Colimil

sketch #2087 zay lin

Zay Lin
sketch #2087 zay lin

sketch #5037 Dolphin by Meen Suksoi

anonymous

anonymous
sketch #5037 Dolphin by Meen Suksoi

sketch #83

Chris Shrimp Lonsdale
sketch #83

sketch #3058 Marilyn Monroe by Adam Pyszny

anonymous

anonymous
sketch #3058 Marilyn Monroe by Adam Pyszny

sketch #297 Fish

Helyryn
sketch #297 Fish

sketch #3298

Hank Henry Armstrong
sketch #3298

sketch #3732 Michael Jackson by David Obando

anonymous

anonymous
sketch #3732 Michael Jackson by David Obando

tomski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 coloring

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

百度教育 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

深入浅出数学系列立体几何（3）：正四面体的性质 知乎 sketch template

深入浅出数学系列立体几何（3）：正四面体的性质 知乎 sketch template

深入浅出数学系列立体几何（3）：正四面体的性质 知乎 sketch template

高中数学：几何体表面积与体积的教学设计 知乎 sketch template

分子点群的归属（2）对称性高的点群化学空间 Chem Station sketch template

正四面体的中心到底面的距离与这四面体的高的比是（）A12B13C14D16 百度教育 sketch template

15．如图2正四面体ABCD的棱长为1H是顶点D的底面 ABC上的射影M在DH上且使得∠ABC=90°则DM的长 为 ——青夏教育 sketch template

详解三角面片：实现现实场景的数字化 CSDN博客 sketch template

一个正四面体的各条棱长都是a那么这个正四面体的高百度经验 sketch template

81半径为 R 的圆球堆积成正四面体空隙，试作图计算该正四面体的边长、高、体心到顶点的距离、中心距底面的高度、中心到两顶点连线的夹角以及 sketch template

正四面体一个顶点处的立体角是多大？ 知乎 sketch template

正四面体一个顶点处的立体角是多大？ 知乎 sketch template

第十四章立体几何初步 知乎 sketch template

正多面体有且只有5种，为什么？ 正多面体为什么只有5种 CSDN博客 sketch template

百度教育 sketch template

正四面体ABCD的棱长为1G是底面 ABC的中心M在线段DG上且使∠AMB=90°则GM的长等于 A B C D——青夏 sketch template

从正八面体，构建：正四面体，正方体，正二十面体 sketch template

Z Math【高中数学�8——正方体的截面形状探究 知乎 sketch template

在正方体的六个表面中与异面组成角的对角线共有 4 条——青夏教育精英家教�—— sketch template

正三棱锥 知乎 sketch template

初学讲义之高中数学二十：简单几何体 知乎 sketch template

正四面体 360百� sketch template

7．如图正四面体的棱长均为且平面于A点BCD均在平面外且在平面同一侧则点B到平面的距离是 A． B． C． D．——青夏教育精英 sketch template

初学讲义之高中数学二十：简单几何体 知乎 sketch template

两相同的正四棱锥组成如图所示的几何体可放棱长为1的正方体内使正四棱锥的底面ABCD与正方体的某一个平面平行且各顶点均在正方体的面上则 sketch template

求棱长为a的正四面体的外接球和内切球的半径解析如图作AH⊥底面BCD于H则AH＝a设内切球的球心为O半径为rO点与ABC sketch template

怎样补全平面图形投影？ 知乎 sketch template

正三棱锥 知乎 sketch template

正四棱锥的顶点都在同一球面上若该棱锥的高为4底面边长为2则该球的表面积为A．B．C．D．题目和参考答案——青夏教育精英家教�—— sketch template

10．已知正四面体点为侧面内的一个动点且点与顶点的距离等于点到底面的距离那么动点的轨迹是某曲线的一部分则该曲线是椭圆抛物线第Ⅱ卷 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

正四棱锥的底面在球O的大圆面上顶点在球面上已知球的体积为则正四棱锥的体积的最大值为 ——青夏教育精英家教�—— sketch template

free web stats