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三角形
Author:
鄭雅輿
Topic:
Triangles
GeoGebra
New Resources
判斷球體
球體建築師
兩位數除以一位數（一）
四邊形的特性
【案例】圆柱体内放置一个大球六个小球
Discover Resources
了解為何 d(lnx)/dx = 1/x
ray tracing of intraocular eye
拿破崙三角形(費馬點)
Translation, Reflection and Rotation
繪圖
Discover Topics
Trigonometry
Terms
Ellipse
Hyperbola
Tangent Line or Tangent