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Properties of parallelogram(平行四邊形的性質)
Author:
chisunch1
GeoGebra
New Resources
直角坐標平面上的旋轉變換
拼砌四邊形
找出對稱軸
兩位數加法
三位數除以一位數（一）
Discover Resources
將數列化為級數（文字）
y=2^x指數函數圖形
Ice Mountain
congruent triangle_provided by Mr Yeung Kar Chun
拋物線4-平行四邊形法
Discover Topics
Pyramid
Logic
Standard Deviation
Complex Numbers
Perimeter