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Author:
海平 文
Topic:
Constructions
GeoGebra
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【案例】2018年全国1卷理科12题
三位數除以一位數（二）
算柱 (兩位數)
球體建築師
兩組對邊相等的四邊形
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整數的加法
三角形的內心軌跡
How to draw a hexagon with ruler and compasses?
堆疊
拉格朗日插值多項式
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Ratios
Functions
Fractions
Variance
Sequences and Series