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Scaled Triangles

Author:Jeff Holcomb

Topic:Similar Triangles, Triangles

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The Geometry of the Coefficients of a Quadratic Function
Slope Between 2 Points (Phase 2)
Fractal Tétraèdre. Dilatation -1/2 centre triangles
Other Variations of Cosine
Taylor Error Bound

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Horizontal Asymptotes of Rational Functions
ellipse as envelope of circles and focus-tangent theorem
Quiz: Multiplication -level-1
Morgan and Avery: Angle Side Side
Erdős's problem #503, n=3

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Rational Numbers
Tangent Function
Matrices
Translation
Congruence

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