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平行四邊形變奏曲III
Author:
周桂名
Topic:
Parallelogram
移動C點 在固定長度下觀察,平行四邊形角度的變化。 如果是菱形,又有何不同?
GeoGebra
New Resources
三半圓間的相切圓(Codex╱2026.10.07)
畫出對稱圖形
國旗 (Claude 版)
Earth with coastline
幾何作圖題:切三圓(題目)
Discover Resources
負二項分佈
Apollonius Problem 7 CCP poncelet
複合圖形(六)
手拉手模型
小正多边形在大正多边形内的滚动(边长相等)
Discover Topics
Circumcircle or Circumscribed Circle
Fractions
Polygons
Equations
Set Theory