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橢圓軌跡
Author:
羅驥韡 (Pegasus Roe)
Topic:
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GeoGebra
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算柱 (兩位數)
兩位數除以一位數（二）
兩組對邊相等的四邊形
球体的体积推导（优化版）
錐體建築師
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分數加法和減法
数学教学新帮手
蜥蜴
三角形的五心
拋物線--平行四邊形法
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Distributions
Constructions
Prism
Sphere
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