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利用尺規作圖找橢圓中心
Author:
mathguo
GeoGebra
New Resources
兩位數加法
找出對稱軸
異分母分數減法
兩位數除以一位數（二）
【案例】2018年全国1卷理科12题
Discover Resources
圓周角的度數
Rectangle_01
Coffee Brewing Control Chart
各種四邊形
Copy of 多項式函數
Discover Topics
Interest Calculation
Constructions
Trapezoid
Quadrilaterals
Terms