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勒洛三角形
Author:
阳光
Topic:
Triangles
GeoGebra
New Resources
柱體建築師
異分母分數減法
拼砌四邊形
兩位數除以一位數（二）
【案例】2013年安徽高考15题
Discover Resources
方格紙上畫四邊形
水波干涉
Question 8
拋物線6--包絡線法
伸縮矩陣的副本
Discover Topics
Square
Bar Chart or Bar Graph
Circle
Area
Sphere