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三垂線
Author:
Wu Xiao-Ren
GeoGebra
New Resources
長方體平面投影 (Codex版)
美國國旗 (Claude 版)
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
美國國旗 (Codex 版)
Discover Resources
Fill the circle
四角柱體（長方體）的截面
geo123
三角形
Area of Triangle
Discover Topics
Isosceles Triangles
Secant Line or Secant
Trapezoid
Differential Calculus
Differential Equation