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探究余弦定理
Author:
john arnold
请大家拖动B点，观察当角ACB发生变化时，面积的大小关系是如何变化的
GeoGebra
New Resources
長方體平面投影 (Codex版)
兩組對邊相等和有直角的四邊形
Claude 解幾何題
Earth with coastline
國旗 (作圖步驟直接餵給 Claude)
Discover Resources
跳舞的六角形
TRIANGLE
彩色立体方阵、点阵
等角对等边
变化的三角形的外心.许兴华数学
Discover Topics
Integral Calculus
Continuity
Sphere
Stochastic Process or Random Process
Circumcircle or Circumscribed Circle