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内外弦图
Author:
叶明杰
GeoGebra
New Resources
画直线等分三角形的面积
兩位數除以一位數（二）
GeoGebra笔记功能体验课件
柱體建築師
【案例】2018年全国1卷理科12题
Discover Resources
雙曲線
拿破侖定理(外拿破侖)證明二
一元二次方程式-應用問題(兩圓相切-2)
k-ko-
Tangent to a curve at a point
Discover Topics
Kite
Pythagoras or Pythagorean Theorem
Cosine
Solids or 3D Shapes
Cone