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A wooden log is encased in a wall. If we cut part of the wall away to a depth of 1 inch...
The development of 30 important mathematics subjects during the twentieth century made understandable to undergraduate mathematics majors.
A square walled city measures 10 li on each side. At the center of each side is a gate. Two persons start walking from the center of the city.
Short biographies of mathematicians with mathematical activities.
Given a right triangle where you know the length of the base and the sum of the perpendicular side and the hypotenuse.

Download the three winning essays to learn about medieval Islamic dust boards, Old Babylonian similarity, and the Fermat Problem.
A survey of concepts of infinite sets over the centuries.
A merchant bought 50,000 pounds of pepper in Portugal for 10,000 scudi and paid a tax of 500 scudi.
There is a four-sided field whose eastern side measures 35 paces, its western side 45 paces, its southern side 25 paces and its northern side 15 paces. Find the area of this field.
An official asks a woman why she has so many bowls to wash. The woman explains that she had dinner guests who ate meat, rice, and soup. Judging by the number of bowls, how many guests were there?