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翰林數學_2下_CH4-2_平行四邊形性質
Author:
翰林數學
GeoGebra
New Resources
找出對稱軸
長方體平面投影 (Codex版)
Nested spiral octagon
美國國旗 (Codex, 2026.10.06)
幾何作圖題：切三圓（題目）
Discover Resources
面積2
比較角的大小三
以 Unit Circle 了解 Sine 的正/負的副本
瓜豆原理——动点跟随
翰林數學_2下_CH3-4_大角對大邊
Discover Topics
Combinatorics
Circle
Plane Figures or Shapes
Polynomial Functions
Vectors 3D (Three-Dimensional)