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學習單：三角形內(外)角合
Author:
Tsai, Dung Jung
,
Tim Brzezinski
GeoGebra
GeoGebra
New Resources
異分母分數減法
三位數除以一位數（二）
拼砌四邊形
兩位數加法
兩組對邊相等和有直角的四邊形
Discover Resources
Trajectory of system: y'=ℯ^(sin(y)) - y² + ln(y)
Addition of 2 Directed Numbers
T,N,B vectors of space curve.
體積的量度 2
轉盤送分遊戲
Discover Topics
Tangent Line or Tangent
Mathematics
Arithmetic
Geometric Distribution
Constructions