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翰林數學_2下_CH3-4_扣條
Author:
翰林數學
GeoGebra
New Resources
畫出對稱圖形
Claude 解幾何題
美國國旗 (Codex, 2026.10.06)
長方體平面投影 (Codex版)
Nested spiral octagon
Discover Resources
滾出直線之3
史坦納圓 (Steiner Circle)
Trianglar prism
正12面體內的正四面體製作
曲面指令练习（柱球转化）
Discover Topics
Median Value
Pythagoras or Pythagorean Theorem
Volume
Area
Tangent Line or Tangent