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旋轉對稱 Rotational symmetry
Author:
TANG TSZ YUEN
Topic:
Symmetry
GeoGebra
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【案例】2018年全国1卷理科12题
画直线等分三角形的面积
判斷球體
兩組對邊相等的四邊形
算柱 (兩位數)
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Proofs Without Words
正弦定理
時鐘問題
等分例子
圆周长演示
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Similar Triangles
Differential Calculus
Exponent
Vectors 2D (Two-Dimensional)
Step Functions