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自學教材_等周圖形簡介
Author:
Cychoy
GeoGebra
New Resources
國旗 (作圖步驟直接餵給 Claude)
sanjiaohanshu
算柱 (兩位數)
世界平面地圖 (Codex╱2026.10.07)
Nested spiral octagon
Discover Resources
均分除法（分數÷整數）
Sectors 扇形
周界
圓心角
比例中的定值問題(一)
Discover Topics
Difference and Slope
Rhombus
Parametric Curves
Algebra
Quadrilaterals