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1986全国文16
Author:
常振虎
GeoGebra
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球體建築師
找出對稱軸
画直线等分三角形的面积
拼砌四邊形
畫出對稱圖形
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雙曲線規
Progressive Formula
Geometry: Plane Figures (幾何: 平面圖像)
三角函數的由來
「相似三角形」任务4的副本
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Conditional Probability
Dilation
Fractions
Unit Circle
Parabola