GeoGebra
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GeoGebra
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3A Math Ch8 Parallelogram
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cyhui
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圓柱體表面面積的副本
二面角
三个平面两两相交
ω的影响
用GGB做遊戲 Math Games By GGB
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Triangle
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Ex.1
碎形
拋物線5--包絡線法
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