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Author:Mark Watford

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Two Triangle Theorem
Proving Triangles Similar by Dilation
Proving Triangles Similar: Multistep Transformations
Position Vector and Derivative Vector
Portions of a Sphere

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algebra project
Pythagoras theorem with regular hexagons
Untitled
What is a Determinant?

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Incircle or Inscribed Circle
Quadratic Equations
Continuity
Planes
Upper and Lower Sum or Riemann Sum

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