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龜甲
Author:
呂麗珠
GeoGebra
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探究三角形的全等條件
祖冲之的期望：内棋与外棋
【案例】2018年全国1卷理科12题
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（二）
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數值滑桿
圓餅圖
testing
平面向量的三點共線定理
二階克拉瑪公式_找y
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Vectors
Equilateral Triangles
Similar Triangles
Fractions
Means