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congruent (AAA) 2
Author:
Ricky Chan
GeoGebra
New Resources
兩位數除以一位數（一）
異分母分數減法
兩位數除以一位數（二）
拼砌四邊形
球體建築師
Discover Resources
Graphs of Linear Equations in Two Unknowns 二元一次方程的圖像
重心性質
加法
分段函数动点轨迹
Collatz Conjecture 考拉兹猜想
Discover Topics
Variance
Pie Chart or Circle Chart
Unit Circle
Complex Numbers
Arithmetic Operations