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A fox, a wild-cat, and a hound pass through customs and together pay 111 coins.

A man has four creditors. To the first he owes 624 ducats; to the second, 546; to the third, 492; and to the fourth 368.

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.

A study of the solution of quartic equations in Cardano's Ars Magna and in the work of Euler and Descartes.

A cliff with a tower on its edge is observed from a boat at sea; find the height of the cliff and the tower.

There is much to see in this museum related to the history of mathematics.

Given two circles tangent to each other and to a common line, determine a relationship between the radii and the distance between the tangent points.

The first detailed biography of James Joseph Sylvester.

A barrel has various holes in it. The first hole empties the barrel in three days...

A circle is inscribed in an isosceles trapezoid. Find the relationship of the radius to the sides.

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