Using a rotation matrix to move points

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This sketch shows how a rotation matrix can be used to transform a polygon in the plane. Experiment with moving B around the circle to see how that transforms the triangle.

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Right Triangle Proportions
Olimpiada Slatina 2.
Eulers Line
Linear (Time vs. Distance) 92219.0
ElijahTessolation

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周長
矩形
不等邊三角形
曲線描繪
坐標

Using a rotation matrix to move points

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