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Tan right angles
Author:
Phil Le Fanu
Topic:
Angles
,
Right Triangles
GeoGebra
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apec
Flip A Bunch of Coins
Golden Rectangles and Golden Spirals
Flip 9 Coins
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Power of a Point Theory of Jacob Steiner
InvertObject
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Transformation of y=acosx-bsinx to Rcos(x+alpha)
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Dilation
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