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Demonstrations 5361  5380 of 7213
Pairwise Tangent Circles Centered at the Vertices of a Triangle
The Area of the Pedal Triangle of the Centroid
The Square of a Median in Terms of the Triangle's Sides
Overhanging Cards
Poker
Problems on Circles II: Halving a Set of Points
Rounding Large Integers
Volume of Cones, Pyramids, and Spheres
How Area Changes with Diameter
Finite Difference Schemes of One Variable
Fibonacci Numbers and the Golden Ratio
Bisection of Segments by the Sides of a Triangle
The Sum of the Squares of the Distances from the Vertices to the Orthocenter
The Orthocenter of the Medial Triangle
Four Collinear Points Related to the Altitudes
Lester's Theorem
The Circumcircle of the Orthocenter and Two Vertices and a Parallelogram
Orthocentre d'un triangle inscrit dans une hyperbole (French)
A Finite Automaton Editor
The Commutative Property of Multiplication
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