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Rectangle
Author:
Angela Yan
GeoGebra
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科赫雪花
常见四边形是否是双心四边形
第八周作业1
平行線的判定
椭圆内切圆链
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固定三角形的條件−題5
優良作品4
螢橋國中-林安哲
GGB8
同心圓+等分割線
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Parabola
Quadrilaterals
Pyramid
General Quadrilateral
Polygons