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橢圓軌跡(兩同心圓)102.12.04
Author:
horngyie1
Topic:
Ellipse
橢圓軌跡(兩同心圓)102.12.04
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
畫出對稱圖形
球體建築師
Discover Resources
平面幾何新路
雙心運動 大
多邊形周界A
zentangle
Copy of 仙后座找北極星1
Discover Topics
Pythagoras or Pythagorean Theorem
Perimeter
Confidence Interval
Upper and Lower Sum or Riemann Sum
Constructions