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優良作品6
Author:
Ching-Hui Chou
GeoGebra
New Resources
球體建築師
三位數除以一位數（一）
四邉形 (四年級) 教師版
画直线等分三角形的面积
拼砌四邊形
Discover Resources
謝爾賓斯三角形
艾雪鑲嵌
梯形
HHHH
斜坐標
Discover Topics
Perimeter
Reflection
Confidence Interval
Geometric Mean
Normal Distribution