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110-9-3
Author:
Cheng Weishiang
GeoGebra
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異分母分數減法
兩組對邊相等的四邊形
找出對稱軸
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
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ex 5
學習單：三角形內(外)角合
阿波羅圓
三角錐(旋轉，實體、透視)
貝氏定理 (計算偽陽性/偽陰性之機率)
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Quadrilaterals
Translation
Constructions
LCM and GCD
Division