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All in one (centres of triangle)
Author:
Big Lee
GeoGebra
New Resources
第八周作业
兩位數除以一位數（一）
画直线等分三角形的面积
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
Discover Resources
T2 Geobra
Book4
supplementary
正n凸多邊形旋轉對稱／反射對稱
根據百分率找數量（一）: 例2的副本
Discover Topics
Geometric Distribution
Sphere
Percentages
Logic
Diagrams