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Convergence articles

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In the figure at the left, if the radii of each inscribed circle is 1, what are the dimensions of the bounding rectangle?
Given: a circle with an inscribed equilateral triangle. The triangle has an area of 12 square units. What is the area of the circle?
A lady has two silver cups, and only one cover for both. The first cup weighs 16 oz, and when it is covered it weighs 3 times as much as the second cup; but when the second cup is covered, it weighs 4 times as much as the first.
Some ideas on using student reports when you teach a course in the history of mathematics
A collection of articles on using the history of mathematics of the past 200 years in the undergraduate classroom.

[Translation of title: Algebra in the Time of Babylon. When Mathematics Were Written on Clay.] A thorough review of Jens Hoyrup's revision, expansion, and French translation of his own 1998 book for Danish high-school students.

A biography of Hypatia in her times, which carefully distinguishes between the known facts of her life and the many speculations about her.
The Tree of Proportions and Proportionality from the De Divina Proportione of Luca Pacioli published in 1509.
Given a guest on horseback rides 300 li in a day. The guest leaves his clothes behind. The host discovers them after 1/3 day, and he starts out with the clothes.
A gentleman has bought a rectangular piece of land whose perimeter is to be 100 rods; and he is to pay 1 dollar for each rod in the length of the land and 3 dollars for each rod in the breath of the land.

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