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Copy of 平行四邊形面積
Author:
CHENG Kwan Yin
,
曾己泉
平行四邊形的面積＝底 x 高
GeoGebra
GeoGebra
New Resources
球體建築師
算柱 (兩位數)
画直线等分三角形的面积
異分母分數減法
三位數除以一位數（一）
Discover Resources
類正五邊形摺法
Conjecture (Tropical Hoehn's Conjecture)
同學最喜愛的運動
徐峻彥's GGB book
earth
Discover Topics
Frequency Distribution
Equilateral Triangles
Indefinite Integral
Arithmetic
Hypothesis Testing