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3-3-09
Author:
Tzuen Hsu
GeoGebra
New Resources
美國國旗 (Codex 版)
Nested spiral octagon
算柱 (兩位數)
AI 訓練教室
四邉形 (四年級) 教師版
Discover Resources
國中(1-1等線段作圖)
小四平面圖形學習單
拋物線軌跡（內切型）
三角形的三中線交於一點(重心)
Copy of 劉徽的「割圓術」
Discover Topics
General Quadrilateral
Straight Lines
Exponent
Right Triangles
Rational Numbers