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橢圓軌跡05
Author:
luke huang
GeoGebra
New Resources
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
GeoGebra笔记功能体验课件
兩位數加法
Discover Resources
tan(α) tan(β) = ?
例子
S2 Angles Related to Rectilinear Figures
四邊形的特性
三角形的四心－五線－內外二圓的副本
Discover Topics
Trapezoid
Statistics
Statistical Characteristics
Addition
Standard Deviation