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仰角和俯角
Author:
SIN MING WONG
,
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.geogebra.hk
New Resources
撒针估算面积实验
正方形雪花图案
百分數及其應用
比較五件物件的重量
斐波那契螺旋弧线(表格法)
Discover Resources
餘弦定理
Griffiths Theorem
perimeter
area 面積
P6 數學 立體的截面
Discover Topics
LCM and GCD
Perimeter
Tree Diagrams
Fractions
Incircle or Inscribed Circle