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滾球平台
Author:
施奕瑄
GeoGebra
New Resources
直角坐標平面上的旋轉變換
兩位數加法
兩位數除以一位數（一）
第八周作业
四邉形 (四年級) 教師版
Discover Resources
畫三角形 題1b
Triangle fixed height
[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
三角形三內角和
gjh-h04-01 多個堆疊的直角三角形
Discover Topics
Pythagoras or Pythagorean Theorem
Vectors 3D (Three-Dimensional)
Translation
Binomial Distribution
Circle