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立方體與平面截痕1
Author:
黃榮豐
GeoGebra
New Resources
畫出對稱圖形
柱體建築師
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
Discover Resources
三角形內切三圓
工作天時
劉徽的「割圓術」的副本
诱导公式六(90°-α)
XY12 核電廠影響範圍
Discover Topics
Angles
Incircle or Inscribed Circle
Addition
Subtraction
Secant Line or Secant