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程自顺98
Author:
zhougf
GeoGebra
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平行線的判定
异形操场
椭圆内切圆链
第八周作业2
百分數及其應用
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沈老師等腰直角幾何題
平行四邊形面積一
集合運算
P.4 對稱
劉虹圻 旁心
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Reflection
Cylinder
Pyramid
Polygons
Frequency Distribution