Symmetry of angles

Topic:Angles, Circle, Coordinates, Symmetry, Unit Circle

Move around point P along the unit circle. If you know the coordinates of P, then you always know the coordinates of 4 angles (plus any multiple of 2 pi).

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Reflection Across 2 Parallel Lines
Prism Drawn in 1-Point Perspective
Reflection = 180° Rotation about a Line
apec
Pitfalls of Disk/Washer Method

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S.O.E. Phone Plans
Premica
Rotations
Classifying Triangles

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Similar Triangles
Matrices
Sine
Parallelogram
Expected Value