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Focus-Directrix Definition of an Ellipse
Author:
Norm Prokup
Discover Resources
Related Rates - Tracking a Rocket
Parabola--Distance with Focus and Directrix
N.RN.1 Rational exponents
Irine's 3d enlarged dice
Skew lines-observation
New Resources
Triangle ASA
Ritem življenja...
Bagels or Donuts - A Balanced Assessment Task
Lines in a Triangle
Centres in a Triangle
