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陳人瑜proof81
Author:
郭亮偉
GeoGebra
New Resources
拼砌四邊形
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
畫出對稱圖形
三位數除以一位數（二）
Discover Resources
Proof of Pythagorean Theorem with Shearing
Transformation of Functions
畢氏定理(面積平移)
angle between 2 planes 01 by Mr LO WY
倍长中线以及一线三等角的应用
Discover Topics
Percentages
Expected Value
Similarity Transformation or Similarity
Hypothesis Testing
Circle