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ruler
Author:
felixchow
菱形
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
四邊形的特性
畫出對稱圖形
異分母分數減法
算柱 (兩位數)
Discover Resources
speed
Sequence指令練習(逐一套疊三角形)
Quiz on Angles in a Circle 圓內的角：測驗
題四
cos, sin 與單位圓
Discover Topics
LCM and GCD
Natural Numbers
Tangent Function
Stochastic Process or Random Process
Conditional Probability