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GeoGebra
it's for fun
Author:
dunst kang
it's for fun
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办毕业 证学历扣薇374936141，
Cross Product for 2D Vectors (平面外積)
未命名
Test
Template: Symmetry 01
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重心性質
Quiz on Solving Right Triangles (Finding Angles) 解直角三角形：測驗2（求角度）
內積
矩形與圓
數值的建置
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Pyramid
Quadrilaterals
Division
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