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三角形的内切圆与外接圆
Author:
夜雨嘀嗒
GeoGebra
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斐波那契螺旋弧线（表格法）
科赫雪花
第三周作业效果演示
活动三：应用性质
百分數及其應用
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「相似三角形」任务4
底圖為兩函數，截面為正方形
正方形分割
Copy of 圖一
Addition and Subtraction of Directed Numbers (2)
Discover Topics
Surface
Curve Sketching
Arithmetic
Geometry
Algebra