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三角四星
Author:
吳秉沂
GeoGebra
New Resources
找出對稱軸
拼砌四邊形
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
第八周作业
Discover Resources
直角三角形內切圓半徑
Features from Vertex form
三角函數的繪圖1
微積分基本定理的副本
椭圆滚动
Discover Topics
Circle
Combinatorics
Surface
Definite Integral
Vectors 2D (Two-Dimensional)