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生活中的立体图形 ( 一 ) - PowerPoint PPT Presentation

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生活中的立体图形 ( 一 )

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1.生活中的立体图形(一)

1、六棱柱有个顶点，

2、六棱柱的侧棱、底面、侧面分别有何特点？

3、长方体、正方体是棱柱吗？

4、三棱柱、四棱柱、六棱柱的

1 2 3 4 5 6

1 2 3 4 5 6

(3)(4)(5)是一类，组成它们的面中至少有一个是曲的;

(1)(2)(6)一类，组成它们的各面都是平的．

1. 棱柱与圆柱的相同与不同

（1）棱柱的底面是形状和大小完全相同的多边形,

（2）棱柱的侧面是长方形，圆柱的侧面是曲面

（3）棱柱有顶点，圆柱没有顶点