(山西专版)2018年秋七年级数学上册第四章几何图形初步4.1几何图形4.1.2点、线、面、体课时训练(无答案)(新版)新人教版.doc

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14.1.2 点、线、面、体基础练习1.围成下面这些立体图形的各个面中,哪些 面是平的?哪些面是曲的?(1) (2) (3) (4) (5)2 人在雪地上走,他的脚印形成一条_,这说明 了_的数学原理3.如图,第二行的图形围绕红线旋 转一周,便能形成第一行的某个几何体,用线连一连.拓展提高4.面与面相交成线,线有_线和_线;线与线相交成 _;5.点、线、面、体的关系:点动成_,线动成_,面动成_。6.几何图形都是由_组成的,_是构成图形的基本元素。7.体是由_围成的,面和面相交形成_,线和线相交形成 _;28.将三角形绕直线 L 旋转一周,可以得到如下图所示立体图形的是( )A B C D

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