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周界-平移法(練習三)
Author:
Choy Wai Yan
求下圖周界
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
錐體建築師
GeoGebra笔记功能体验课件
Discover Resources
Ray tracing
ie 4
test
勾股定理证明演示--分割股边
求切线方程(改进)
Discover Topics
Quadrilaterals
Polygons
Prism
Fractal Geometry
Triangles