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perimeter
Author:
Yip Sin Yue
,
spkwan
,
GeoGebra Institute of Hong Kong
GeoGebra
GeoGebra
New Resources
畫出對稱圖形
四邊形的特性
兩位數除以一位數（二）
兩組對邊相等的四邊形
画直线等分三角形的面积
Discover Resources
未完成的版本
只跳躍一次的函數
遞迴
五星红旗
全景平面投影
Discover Topics
Cosine
Arithmetic
Optimization Problems
Polynomial Functions
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