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Properties of parallelogram(平行四邊形的性質)
Author:
chisunch1
GeoGebra
New Resources
兩組對邊相等的四邊形
三位數除以一位數（一）
球体的体积推导（优化版）
画直线等分三角形的面积
四邉形 (四年級) 教師版
Discover Resources
Form 5 Mathematics
填滿與旋轉
P6 圓周01A
扇形面積公式1
湯圓rice ball
Discover Topics
Rational Numbers
Step Functions
Rotation
Boxplot
Area