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3-1-4
Author:
環遊數界
GeoGebra
New Resources
異分母分數減法
GeoGebra笔记功能体验课件
兩組對邊相等的四邊形
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
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畢式定理 (05)
拿破侖定理(內拿破侖)證明三
學習單：三角形內(外)角合
試作
兩位數乘兩位數直式
Discover Topics
Trapezoid
Right Triangles
Set Theory
Differential Calculus
Linear Functions