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waaachen
Author:
陳兪宏
阿凱老師的幾何問題
GeoGebra
New Resources
畫出對稱圖形
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
四邊形的特性
Discover Resources
Locus 軌跡(2T)
angle at centre vs angle at circumference
加法(粒條)
辽南协作校10题
圓與弦2的副本
Discover Topics
Histogram
Dilation
Function Graph
Cosine
Volume