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proof3(1-1)吳奕杰
Author:
郭亮偉
GeoGebra
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兩位數除以一位數（一）
球體建築師
sanjiaohanshu
第八周作业
找出對稱軸
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直线与椭圆
倫敦滾石橋
test
My second work
gjc100a34 兩三角形重疊面積比
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Polygons
Prism
Congruence
Quadrilaterals
Orthocenter