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Author:
Bennie Liu
GeoGebra
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兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
算柱 (兩位數)
兩位數加法
錐體建築師
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三角形三邊上各一點最小周長
優良作品3
sinα + sinβ > 0 ?
Properties of a Rhombus
圖解直式開方
Discover Topics
Polynomial Functions
Arithmetic Mean
Integers
Solids or 3D Shapes
Parallelogram