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橢圓3--平行四邊形法
Author:
33陳郁婷
GeoGebra
New Resources
拼砌四邊形
三位數除以一位數（一）
四邉形 (四年級) 教師版
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
Discover Resources
兩數相加
費爾巴哈(Feuerbach)定理
Solar System
sun2
平行四邊形的特性
Discover Topics
Fractions
Percentages
Vectors 2D (Two-Dimensional)
Normal Distribution
Expected Value