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ie 6
Author:
LAM YU SANG
GeoGebra
New Resources
科赫雪花
圓的切線方程
圓的基本性質
常见四边形是否是双心四边形
活动三:应用性质
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我的第一個GGB影片
藝術著色2
異分母分數加法
圓周 (圖形G)
外心
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Translation
Addition
Logic
Parabola
Congruence