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Convergence articles

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Given a rectangle, find the line through one vertex of minimum length that passes through the extensions of the two opposite sides.
Three circles of varying radius are mutually tangent. The area of the triangle connecting their centers is given. Find the radius of the third circle.
There is a round town 8000 feet in circumference.
A letter to Sam Greitzer, late editor of Arbelos, discussing the derivation of two formulas for calculating pi.
Download the two winning essays to learn about using indivisibles to find the area under a cycloid arch in the 17th century and about the Radon transform and its use in x-ray tomography in the 20th century.
A great book from which to learn and teach the subject of relativity.
This is the title page of Isaac Barrow's Latin edition of the works of Archimedes, the first four books of Apollonius's Conics, and Theodosius's Spherica. It was published in 1675.
Fibonacci gave a practical rule for approximating the area of an equilateral triangle.
A collection of articles dealing with mathematical models and objects and how they can be used in teaching.
Thumbnail sketches of statisticians throughout history.