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The First Lester Circle
Author:
Steve Phelps
The Fermat Point and the Negative Fermat Point are concyclic with the Nine-point center and the Circumcenter.
Discover Resources
Visualising Differentiation
polynomial functions # 4 Mi'Kel Myers
IM2.7 T1: Circle Basics
Angles subtended by tangents to an ellipse
PA X PB = PC X PD
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Triangle to Square Puzzle
Right-angled triangle
Ritem življenja...
Rectangle
Centres in a Triangle
