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parallelogram
Author:
iedc
GeoGebra
New Resources
異分母分數減法
GeoGebra笔记功能体验课件
兩位數除以一位數（二）
四邊形的特性
三位數除以一位數（二）
Discover Resources
三下_三角形( 教師版)
Rugby Ball
由對稱方法畫出指數函數的圖形
西瓦定理 (Ceva's Theorem)
Rotational and reflectional symmetry of a regular polygon
Discover Topics
Optimization Problems
Quadratic Functions
Correlation
General Quadrilateral
Perimeter