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正四面體變菱形12面體
Author:
賴詩唐
GeoGebra
New Resources
四邊形的特性
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
畫出對稱圖形
算柱 (兩位數)
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三角形，點上平分面積
test1
Sierpinski Triangle
anlge at centre twice angle at circumference
翰林數學_2下_CH4-2_特殊平行四邊形有關對角線的性質
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Prism
Diagrams
Solids or 3D Shapes
Straight Lines
Mathematics