reflec about line

主題：反射

Drag segment to see the circles' reflect about line. The distance of each circle to line is equal to distance of its reflect to line. .Direction of the movement of reflect is changed

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Chapter 8
Copy an angle
Freedom Tower
Tetrahedron
MaddieEdwards_GeogebraCheckIN

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Dilation
直線
函數圖形
向量
橢圓

reflec about line

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