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周界-平移法(練習三)
Author:
Choy Wai Yan
求下圖周界
GeoGebra
New Resources
伊朗國旗 (Codex╱2026.10.07)
幾何作圖題：切三圓（題目）
sanjiaohanshu
算柱 (兩位數)
世界平面地圖 (Codex╱2026.10.07)
Discover Resources
glt-h02-00-正方形折成三角錐
找规律（数阵与点阵）
謝爾賓斯基三角形
比例中的定值問題
任意凸多边形的滚动
Discover Topics
Rotation
Rational Numbers
Parallelogram
Quadratic Functions
Vectors 2D (Two-Dimensional)