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Angle (Extended 1)
Author:
Chan Kwan Ho
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等的四邊形
異分母分數減法
【案例】2018年全国1卷理科12题
画直线等分三角形的面积
Discover Resources
已知正三角形內部一點到三邊距離求面積
棒形圖2(我最喜愛的科目)
semops_柱體
數播線上201802
P.1 加法結合性質（新課程）
Discover Topics
Rational Numbers
Polygons
Standard Deviation
Solids or 3D Shapes
Quadrilaterals