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Sunrays with different angles
Author:
lcheng
GeoGebra
New Resources
找出對稱軸
第八周作业
直角坐標平面上的旋轉變換
三位數除以一位數（一）
兩位數加法
Discover Resources
圓的面積
圓周角與弦切角
前景背景
橢圓的副本
中国节灯笼
Discover Topics
Logic
Circle
Statistics
Trapezoid
Constructions