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練習 - 逆時針旋轉（三角形）
Author:
Lau Sir
Topic:
Triangles
GeoGebra
New Resources
Earth with coastline
第八周作业
找出對稱軸
AI 訓練教室
小数 的副本
Discover Resources
Compare areas by cutting shapes Q2
Copy of Fill a special area
拋物線5--包絡線法
加減乘除运算 出题器【有数字键盘】
【案例】圆柱体内放置一个大球六个小球
Discover Topics
Orthocenter
Binomial Distribution
Histogram
Unit Circle
Similar Triangles