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三角形外角和=360⁰
Author:
李春培
三角形外角和=360⁰
GeoGebra
New Resources
球体的体积推导
異分母分數減法
GeoGebra笔记功能体验课件
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
Discover Resources
Add and subtract
優良作品3
移動滑桿k 控制k1 k2 k3數值變化
angles sum of a triangle 1
Opp angles cyclic quad
Discover Topics
Sphere
Binomial Distribution
Dilation
Division
Centroid or Barycenter