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Problems from Another Time

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

If I were to give 7 pennies to each beggar at my door, I would have 24 pennies left in my purse. How many beggars are there and how much money do I have?
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.
Prove that the area of a regular polygon can be given by the product of its perimeter and half the radius of the inscribed circle.
The radius of a circle is 3.20 meters. Compute to within .001 square meters the areas of the inscribed and circumscribed equilateral triangles.
How a translation of Peano's counterexample to the 'theorem' that a zero Wronskian implies linear dependence can help your differential equations students
There is a circle from within which a square is cut, the remaining portion having an area of 47.6255 square units.
A circle is inscribed in an isosceles trapezoid. Find the relationship of the radius to the sides.
A cat sitting on a wall 4 cubits high saw a rat prowling 8 cubits from the foot of the wall.
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
Now a pile of rice is against a wall with a base circumference 60 chi and an altitude of 12 chi.

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