初一数学一单元总结初一数学几何体单元怎么总结?-查字典问答网
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  初一数学一单元总结初一数学几何体单元怎么总结?

  初一数学一单元总结

  初一数学几何体单元怎么总结?

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2020-04-14 19:25
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  {详写的}

  ```````````````````1.1立体图形

  `````````````上底面```````````````下底面`````````侧面

  ``````圆柱体圆形且与下底面相等圆形;平行于上底曲面,……

  柱体:

  ``````棱柱上下底平行…为多边形……都是矩形…

  `````……………………

  椎体:

  `````……………………

  `````……………………

  台体:

  `````……………………

  球体:……………………

  (把图形画上,再把你们学的内容填上就ok了.)

  ````````````````1.2点线面

  1.点(运动)→线(运动)→面(运动)→体

  2.面面相交成线,线线相交成点.

  3.旋转过程中图形的表面积与体积的变化情况.

  ……

  {展开与折叠……}

  ````````````````1.3截一个几何体

  1.球体(截面)——圆

  2.圆柱→水平:…纵向:…斜切:…

  柱体

  棱柱→(同上)

  3.椎体(同上…)

  ````````````````1.4从不同方向看

  1.主视图(高、长)

  2.左视图(高、宽)

  3.俯视图(长、宽)

  ```````主视图```````左视图```````俯视图

  球体

  圆柱

  圆锥

  组成图

  (把图形画上.)

  `````````````````1.5平面图形

  1.多边形

  概念:……(图)

  2.数多边形的边及三角形个数

  (图)n(n-1)/2……

  小结:

  ````````````````````生活中的几何体

  ``````````````````/````|````|````

  ````````````````分类``展开`截面``视图

  ````````````````````````|_____________|

  ``````````````````````````````|

  ```````````````````````````平面图形

  ```````````````````````````(生活)

  ps:居然不能空格…所以用“```”来保持美观…

  (呼...累死我liao……)

2020-04-14 19:30:28

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