七年级数学上册第四章图形的初步认识4.1生活中的立体图形作业(新版)华东师大版.doc

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14.1 生活中的立体图形1如图所示,陀螺是由下面哪两个几何体组合而成的( )A长方体和圆锥 B长方形和三角形C圆和三角形 D圆柱和圆锥2下列立体图形中,是多面体的是( )3一个直棱柱有 12 个顶点,那么它的面的个数是( )A10 个 B9 个 C8 个 D7 个4下面给出的图形中,绕虚线旋转一周能形成圆锥的是( )5有一个面是曲面的立体图形有(列举出三个)6如图所示的长方体有_个面,_条棱,_个顶点7下列说法错误的是( )A长方体和正方体都是棱柱B三棱柱的侧面是三角形C直六棱柱有六个侧面,侧面为长方形D球只有一个面8如图是一个三棱柱,把它一刀切去一部分,剩下的部分会是一个什么图形?2参考答案:1.D2.B 3.C 4.D5.圆锥、圆柱、圆台6.6 12 87.B8.解:如图所示,可以切成两个三棱柱;一个三棱锥、一个四棱锥;一个四棱柱、一个三棱柱

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