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GeoGebra
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GeoGebra
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Author:
keith leung
,
Tim Brzezinski
area
GeoGebra
New Resources
拼砌四邊形
找出對稱軸
畫出對稱圖形
直角坐標平面上的旋轉變換
三位數除以一位數（二）
Discover Resources
梯形
Why same areas?
Copy of 畫鐘面
圓切三半圓
Copy of 分數加法
Discover Topics
Ratios
Sine
Secant Line or Secant
Perimeter
Square