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小学数学课件
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小学数学课件. 长方体的认识. 在平面上由几条线段围成的图形叫 平面图形. 立体图形. A. B. D. C. 长方体的认识. 上海制笔销售公司 宜兴洋新兴化工厂. 小学生字典. 新兴. ( ). 北 京. 8214. 高级碳素墨水. 生活中,你还见过那些物体的图形是长方体或正方体 ?. 面. 顶点. 棱. 长方体有 6 个面,且相对的面大小相等。. 长方体有 12 条棱,互相平行的 4 条棱长度相等 ; 有 8 个顶点。. 高. 宽. 长. 判断:正确的在括号里画“√”,错误的在括号里画“ ×” 。.
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小学数学课件
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小学数学课件 长方体的认识
立体图形 A B D C
上海制笔销售公司 宜兴洋新兴化工厂 小学生字典 新兴 ( ) 北 京 8214 高级碳素墨水 生活中,你还见过那些物体的图形是长方体或正方体?
面 顶点 棱
长方体有12条棱,互相平行的4条棱长度相等;有8个顶点。长方体有12条棱,互相平行的4条棱长度相等;有8个顶点。
高 宽 长
判断:正确的在括号里画“√”,错误的在括号里画“×”。判断:正确的在括号里画“√”,错误的在括号里画“×”。 (1)长方体的六个面一定是长方形;( ) ×
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