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正三角形的旋轉
Author:
李春培
正三角形的旋轉
GeoGebra
New Resources
GeoGebra笔记功能体验课件
畫出對稱圖形
算柱 (兩位數)
異分母分數減法
第八周作业
Discover Resources
小數
扇形動畫
工具：PlaneArrows, PlaneText... (v.2)
旋轉的概念
Strike and Dip 地層的走向與傾角的副本
Discover Topics
Rational Numbers
Functions
Similar Triangles
Exponent
General Quadrilateral