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萬花筒
Author:
陳隆期
GeoGebra
New Resources
兩組對邊相等的四邊形
異分母分數減法
拼砌四邊形
三位數除以一位數（二）
GeoGebra笔记功能体验课件
Discover Resources
Area of rectangle
帥哥的創舉 <3
生活中的平面圖形─角的性質
橢圓3--平行四邊形法
Illusion-平行线错觉
Discover Topics
Polygons
Trigonometric Functions
Exponent
Differential Calculus
Planes