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四則
Author:
周錦鋒
GeoGebra
New Resources
三位數除以一位數（二）
判斷球體
拼砌四邊形
兩組對邊相等的四邊形
異分母分數減法
Discover Resources
Trigonometric Ratios: Cosine & Tangent 三角比：餘弦和正切
堆疊正立方體
Properties of a Rectangle
線性規劃
正多边形构造
Discover Topics
Diagrams
Cube
Stochastic Process or Random Process
Median Line
Logarithm