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Author:
ken cheng
GeoGebra
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算柱 (兩位數)
兩位數除以一位數(二)
判斷球體
GeoGebra笔记功能体验课件
第八周作业
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相似三角形
很厲害喔
三角形三邊大小關係(國小五上翰林4-1)
ghk99a29 扇形旋轉
点、线、角
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Difference and Slope
Real Numbers
Trigonometry
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Ratios