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圓周 (圖形C)
Author:
Keith Ko
移動右圖中的紅線到左方虛線，就知道它是相等於左圖的哪條線。
GeoGebra
New Resources
四邉形 (四年級) 教師版
畫出對稱圖形
sanjiaohanshu
國旗 (作圖步驟直接餵給 Claude)
近似值：有效數字
Discover Resources
好玩的輪盤
曲線
正多角錐(可輸入底面邊數)
橢圓1-同心圓法
面积解题
Discover Topics
Constructions
Random Experiments
Stochastic Process or Random Process
Matrices
Pyramid