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旋轉扇形
Author:
h6741957g
GeoGebra
New Resources
兩位數除以一位數（一）
畫出對稱圖形
画直线等分三角形的面积
【案例】2018年全国1卷理科12题
第八周作业
Discover Resources
史坦納圓鍊 (Steiner Chain)
Homework8
Drag C and see
圓錐截痕
拋物線
Discover Topics
Secant Line or Secant
Quadratic Equations
Tangent Line or Tangent
Ratios
Intersection