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平行線的性質
Author:
李春培
平行線的性質
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
球體建築師
第八周作业
找出對稱軸
Discover Resources
平行四邊形和長方形的大小
封閉圖形的斜線區域
slope
畢氏定理 (勾股定理) <Pythagorean theorem>
兩位數除三位數(商<10)
Discover Topics
Definite Integral
Integers
Confidence Interval
Constructions
Pie Chart or Circle Chart