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小學四年級 數學科 圖形密舖

小學四年級 數學科 圖形密舖. 密舖的定義. 把圖形舖在平面上 , 圖形之間沒重疊 , 沒有空隙 , 便是密舖 。. 哪些圖形 可以密舖 ?. 1. 四邊形 A. 正方形. 1. 四邊形 B. 長方形. 1. 四邊形. C. 菱形. D. 平行四邊形. 1. 四邊形. E. 梯形. 1. 四邊形. F. 鷂形. 1. 四邊形. 任何一種四邊形都可以密舖的. 1. 四邊形. 2. 三角形 A. 等腰三角形. B. 等邊三角形. 2. 三角形. C. 直角三角形. 2. 三角形. 這些三角形拼砌後的圖形有何共同的特徵 ?.

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小學四年級 數學科 圖形密舖

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