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Convergence articles

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A set of four congruent circles whose centers form a square is inscribed in a right triangle ABC where C is the right angle and serves as one corner of the square. Find their radius in terms of the sides; a,b,c, of the triangle.
A sketch of the history of topology, beginning with the polyhedron formula, but continuing up to the present.
Two men rent a pasture for 100 liras on the understanding that two cows are to be counted as being equivalent to three sheep. The first puts in 60 cows and 85 sheep; the second 80 cows and 100 sheep. How much should each pay?
The annual meeting of the NCTM contains numerous sessions dealing with the history of mathematics.
The first detailed biography of James Joseph Sylvester.
The highest point of the Andes is about 4 miles above sea level.
Find the height of a window.
Suppose a man had put out one cent at compound interest in 1620, what would have been the amount in 1824, allowing it to double once in 12 years?

A math history class visits the 'Beautiful Science' exhibit at the Huntington Library in Southern California.

Two posters illustrating the major milestones in the history of mathematics, from the first ideas of "number" to the proof of Fermat's Last Theorem.

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