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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
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兩位數加法
三位數除以一位數（一）
兩位數除以一位數（二）
【案例】2013年安徽高考15题
【案例】圆柱体内放置一个大球六个小球
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折扣 例2
共點線1
Angle between a Line and a Plane
Angles formed by two straight lines and transversal
面積題 F
Discover Topics
Pyramid
Cuboid
Linear Functions
Vectors 3D (Three-Dimensional)
Parabola