棱长为2的正四面体的四个顶点都在同一个球面上若过该球球心的一个截面如图则图中三角形的面积是 ．题目和参考答案——青夏教育精英家教�—— Sketch Coloring Page

棱长为2的正四面体的四个顶点都在同一个球面上若过该球球心的一个截面如图则图中三角形的面积是 ．题目和参考答案——青夏教育精英家教�—— Template

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More Sketches

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

sketch #1670

Saifa Mahmud
sketch #1670

sketch #5037 Dolphin by Meen Suksoi

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anonymous
sketch #5037 Dolphin by Meen Suksoi

sketch #4393 ant

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anonymous
sketch #4393 ant

sketch #3974 Bird Skerch w/ vibration

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anonymous
sketch #3974 Bird Skerch w/ vibration

sketch #4751 Ruko by Rodrigo Marcos

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sketch #4751 Ruko by Rodrigo Marcos

sketch #1110

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anonymous
sketch #1110

sketch #4939 Zelda by Jeanie Wagenknecht

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sketch #4939 Zelda by Jeanie Wagenknecht

sketch #4454 Lisa by Muhammad Raiyaan

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sketch #4454 Lisa by Muhammad Raiyaan

sketch #2881 Mickey Mouse by Michael Angcay

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sketch #2881 Mickey Mouse by Michael Angcay

sketch #5048

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anonymous
sketch #5048

sketch #4370 Breaking Bad

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anonymous
sketch #4370 Breaking Bad

sketch #2777 Ralph & Vanellope by Alexander Volodimirovich Danilchenko

Alexander Volodimirovich Danilchenko
sketch #2777 Ralph & Vanellope by Alexander Volodimirovich Danilchenko

sketch #5123

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anonymous
sketch #5123

sketch #1444

Donara Smbatyan
sketch #1444

sketch #1833 Head shot - abz

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sketch #1833 Head shot - abz

sketch #5223 Elsa from Frozen by Ben De Jesus

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sketch #5223 Elsa from Frozen by Ben De Jesus

sketch #5168

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anonymous
sketch #5168

sketch #3280 Adventure Time by Alina Danielle

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sketch #3280 Adventure Time by Alina Danielle

sketch #3381 DBZ by Adidtzu Ady

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sketch #3381 DBZ by Adidtzu Ady

sketch #5180

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anonymous
sketch #5180

sketch #5210 I love you by Saul Mansanares

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sketch #5210 I love you by Saul Mansanares

sketch #3810

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anonymous
sketch #3810

sketch #3708

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anonymous
sketch #3708

sketch #1470

Laura Agapi Asnicar
sketch #1470

sketch #1474

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sketch #1474

sketch #3076 Angel by Burak Turan

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sketch #3076 Angel by Burak Turan

sketch #3058 Marilyn Monroe by Adam Pyszny

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sketch #3058 Marilyn Monroe by Adam Pyszny

sketch #5249 Adele - Skyfall by Mert Arda Yiğit

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sketch #5249 Adele - Skyfall by Mert Arda Yiğit

sketch #4151

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sketch #4151

sketch #2645 Flowers in window

Rachel Roe
sketch #2645 Flowers in window

tomski棱长为2的正四面体的四个顶点都在同一个球面上若过该球球心的一个截面如图则图中三角形的面积是 ．题目和参考答案——青夏教育精英家教�—— coloring

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

棱长为2的正四面体的四个顶点都在同一个球面上若过该球球心的一个截面如图则图中三角形的面积是 ． 题目和参考答案——青夏教育精英家教�—— sketch template

深入浅出数学系列立体几何（4）：球的切接问题（上）知乎 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

百度教育 sketch template

已知菱形的边长为2，将沿折起，使得点至点的位置，得到四面体当二面角的大小为120°时，四面体的体积为；当四面体的体积为1时，以为球心，的长 sketch template

正四面体 随意优惠券 sketch template

正四面体怎么建立空间直角坐标系�？知乎 sketch template

正四面体ABCD棱长为2，E、F分别为BC、AD中点，则EF的长为 百度教育 sketch template

已知正四面体ABCD的棱长为2，所有与它的四个顶点距离相等的平面截这个四面体所得截面的面积之和是（）A．3 3B．4C．3D．3 百度教育 sketch template

求棱长为a的正四面体的外接球与内切球的半径． 题目和参考答案——青夏教育精英家教�—— sketch template

正四面体一个顶点处的立体角是多大？知乎 sketch template

勒洛四面体是一个非常神奇的“四面体”、它能在：两个平行平面间自由转动，并且始终保持与两平面都接触、因此它能像球一样来回滚动（如图甲），利用这一 sketch template

对于一个多面体来说欧拉公式是指 A顶点数 棱数面数=2 B顶点数面数 棱数=2 C棱数 顶点数=2 D不同于 sketch template

棱长为2的正四面体的四个顶点都在同一个球面上 若过该球球心的一个截面如图1 则图中三角形的面积是 A． B． C． D．——青夏教育精英家教�—— 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

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

3 正四面体的外接球 sketch template

深入浅出数学系列立体几何（4）：球的切接问题（上）知乎 sketch template

10．已知正四面体内接于半径为R的球用一平面去截此正四面体和球其截面如图则球心到截面的距离为 A． B． C． D．——青夏教育精英家教�—— sketch template

在棱长为a的正四面体中，相对两条棱间的距离为 百度教育 sketch template

2．求棱长为a的正四面体外接球的半径．百度教育 sketch template

已知正四面体ABCD的棱长为1求1该四面体的内切球的表面积2与该四面体各条棱均相切的球的体积3该四面体的外接球上AB两点间 sketch template

设四面体的各条棱长都为1若该四面体的各个顶点都在同一个球面上求该球的表面积． 题目和参考答案——青夏教育精英家教�—— 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

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

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

正三棱锥的高为1，底面边长为2√6，内有一个球与它的四个面都相切，求：三棱锥的表面积．内切球的半径．百度教育 sketch template

正四面体 360百� sketch template

两个相同的正四棱锥底面重合组成一个八面体可放于棱长为1的正方体中重合的底面与正方体的某一个面平行各顶点均在正方体的表面上把满足上述条件 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

棱长 360百� sketch template

例4、正四面体的棱长为a，则其内切球和外接球的半径是多�体积是多�？练习：角度一直三棱柱的外接球1．2013辽宁高考已知直三棱柱 sketch template

正四棱锥的顶点都在同一球面上若该棱锥的高为6底面边长为4则该球的表面积为 A443πB4849πC814πD16π 题目和 sketch template

正四棱锥百度百� sketch template

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