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練習 - 逆時針旋轉（三角形）
Author:
Lau Sir
Topic:
Triangles
GeoGebra
New Resources
GeoGebra笔记功能体验课件
找出對稱軸
算柱 (兩位數)
兩位數除以一位數（二）
柱體建築師
Discover Resources
Linear Inequalities in Two Unknowns 二元一次不等式
二次函數「標準式」平移(進階)
斯坦納-雷米歐司(Steiner-Lehmus)定理證明一
周界平移
扇形滚动(圆心角半径可变)
Discover Topics
Centroid or Barycenter
Equations
Combinatorics
Conditional Probability
Random Variables