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動圓的圓心軌跡為橢圓
Author:
Ho-Kai Chen
Topic:
Ellipse
拉動大圓上的N點, 觀察圖形的變化!
GeoGebra
New Resources
柱體建築師
sanjiaohanshu
兩組對邊相等的四邊形
第八周作业
四邉形 (四年級) 教師版
Discover Resources
最小值
三節棍的軌跡
小遊戲(Butterfly)
找规律(数阵与点阵)
金剛合體!!
Discover Topics
Straight Lines
Sine
Diagrams
Bar Chart or Bar Graph
Kite