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2S2 3S3 角的認識 20180305
Author:
makkei
GeoGebra
New Resources
拼砌四邊形
三位數除以一位數（一）
兩組對邊相等的四邊形
球体的体积推导（优化版）
兩組對邊相等和有直角的四邊形
Discover Resources
三角形內部一點到三頂點距離和最小
Staff Development Temp
How to draw a square with ruler and compasses?
特殊角三角函数值
Copy of 正方體的反射對稱1
Discover Topics
Solids or 3D Shapes
Reflection
Percentages
Cylinder
Similarity Transformation or Similarity