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第 57 屆國際數學奧林匹亞競賽試題
Author:
Yu-Tuan Lin
GeoGebra
New Resources
拼砌四邊形
找出對稱軸
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
三位數除以一位數（二）
Discover Resources
Demo
滾出直線滾出直線
三角形的四心－五線－內外二圓
Angle between Lateral Faces 2
圓內接四邊形--預習工作紙
Discover Topics
Algebra
Random Variables
LCM and GCD
Differential Calculus
Logic