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perimeter
Author:
Yvonne Fung
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
画直线等分三角形的面积
兩位數加法
畫出對稱圖形
算柱 (兩位數)
兩組對邊相等的四邊形
Discover Resources
proof ASA
ggb-fs-b1 分數擴分
測試作業?
Introduce Tangent Ratio
廣義三角函數
Discover Topics
Geometric Mean
Polygons
Histogram
Tree Diagrams
Conic Sections