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S2E3L6夏至的日照与竿影变化
Author:
浅蓝色
GeoGebra
New Resources
第八周作业
Nested spiral octagon
sanjiaohanshu
直角坐標平面上的旋轉變換
美國國旗 (Codex 版)
Discover Resources
Symmetric設計對稱圖案(一條對稱軸)斜2
點到直線距離4：同心圓擴大
过圆上一点作切线，三步
雙曲線的副本
七巧板（tangram）的副本
Discover Topics
Perimeter
Constructions
Step Functions
Trapezoid
Complex Numbers