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2.2.12.2 利用计算方法绘制两圆外公切线
Author:
Zhang Guangmin
2.2.12.2 利用计算方法绘制两圆外公切线
GeoGebra
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扇形面積
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三視圖02
弓形的滚动
S2 Chapter11.1 三角形的對鄰斜
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Arithmetic Mean
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