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三角形
Author:
彭宇辰
Topic:
Triangles
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
兩位數加法
三位數除以一位數（二）
判斷球體
Discover Resources
test03
三角形
分數認識
摺紙模板
放射狀圖形
Discover Topics
Centroid or Barycenter
Geometric Distribution
Trigonometric Functions
Tree Diagrams
Means