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The Beautiful Dance of the Earth and Venus
Author:
Chenwei Chen
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
判斷球體
兩位數除以一位數（二）
兩位數除以一位數（一）
Discover Resources
方格紙上畫平行四邊形3
任意角的三角比
同心圓和線段
長方形
Solve ax + b = c | 解方程（樣式： ax + b = c ）
Discover Topics
Kite
Conic Sections
Vectors
Special Points
Line Segment