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Demonstrations 5161  5180 of 7033
Circumcircles Intersecting at the First Fermat Point
Collinearity of an Incenter and Two Circumcenters
A Hexagon with Opposite Sides Parallel
The Product of the Perpendiculars to the Sides of a Triangle
Tangents to the Circumcircle at the Vertices
Displacement versus Distance
The Orthocentroidal Circle
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
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