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三角形內角和180度
Author:
范欣茹
Topic:
Triangles
GeoGebra
New Resources
GeoGebra笔记功能体验课件
算柱 (兩位數)
三位數除以一位數（二）
拼砌四邊形
兩位數除以一位數（二）
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部分佔全部的百分率 :例2
托勒密定理推廣到任意四邊形二
面積
滑桿
Epicycloid
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Continuity
Conic Sections
Random Experiments
Addition
Geometric Transformations