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練習 - 逆時針旋轉（三角形）
Author:
Lau Sir
Topic:
Triangles
GeoGebra
New Resources
Nested spiral octagon
Claude 解幾何題
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
小数 的副本
Discover Resources
CAS View
由對稱方法畫出指數函數的圖形
弧度制的意义
正割函數的絕對值圖形
正弦函数图像的形成过程.许兴华数学
Discover Topics
Subtraction
Arithmetic Operations
Constructions
Dilation
Tangent Line or Tangent