(贵阳专版)2019届中考数学总复习第一部分教材知识梳理第6章图形的变化第3节视图与投影(精练)试题.doc

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1、1第三节 视图与投影(时间:30分钟 ) 1(2018绍兴中考)有6个相同的立方体搭成的几何体如图,则它的主视图是( D )2(2018温州中考) 移动台阶如图,它的主视图是( B )3(2018云南中考)下列图形是某几何体的三视图(其 中主视图也称正视图,左视图也称侧视图),则这个几何体是( D )A三棱柱 B三棱锥 C圆柱 D圆锥4(2018 河北中考)图中三视图对应的几何体是( C )5(2018宁波中考)如图是由6个大小相同的立方体组成的几何体,在这个几何体的三视图中,是中心对 称图形的是( C ) A主视图 B左视图C俯视图 D主视图和左视图6下列几何体中,主视图和左视图都为矩形的是

2、 B ),A) ,B) ,C) ,D)27(2018天门中考)如图是某个几何体的展开图,该几何体是( A )A三棱柱 B三棱锥 C圆柱 D圆锥8(201 8荆门中考)某几何体由若干个大小相同的小正方体搭成,其主视图与左视图如图所示,则搭成这个几何体的小 正方体最少有( B ) A4个 B5个 C6个 D7个9(2018临沂中考)如图是一个几何体的三视图(图中尺寸单位: cm),根据图中所示数据求 得这个几何体的侧面积是( C ) A12 cm2 B(12 ) cm2C6 cm2 D8 cm210墙壁CD上D处有一盏灯(如图),小明站在A处 测得他的影长与身长相等,都为1.6 m,他向墙壁走1 m到B处时发现影子刚好落在A点,则灯泡与地面的距离CD_ _ m. 641511由一些完全相同的小正方体搭成的几何体的主视图和左视图如图所示,则组成这个几何体的小正方体的个数可能是_4或5或6或7_2

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