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线绕成弧（弧展成线)
Author:
吴礼荣
Topic:
Trigonometric Functions
GeoGebra
New Resources
GeoGebra笔记功能体验课件
【案例】2018年全国1卷理科12题
球體建築師
四邊形的特性
判斷球體
Discover Resources
平移法（四）
area 面積3
圆的面积展开的副本
纏繞畫2
圓周公式應用題2的副本
Discover Topics
Fractal Geometry
Congruence
Translation
Parabola
Arithmetic Operations