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題 9
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等的四邊形
Nested spiral octagon
美國國旗 (Codex 版)
近似值：有效數字
Discover Resources
宬風老師的GGB教師研習教材
月亮的轨道
二次函數
最新的解一元二次方程式方法
圆心可变的扇形在x轴上滚动
Discover Topics
Multiplication
Quadratic Functions
Cuboid
Inequalities
Statistical Characteristics