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Twenty-three weary travelers entered a delightful forest. There they found 63 numerically equal piles of plantain fruit.
The cavity of our chimney is an upright parallelepiped, the diagonal of whose base is 60"; and the height of the lower side of the lintel above the plane of the floor is 40".
This conference takes place in 2006 at Pennsylvania State University, Erie.
The triangle ABC has a right angle at C. Show that 1/ED=1/AC+1/AB

We invite you to send us information about these photographs of 20th century mathematicians.

Find two number with sum 20 and when squared their sum is 208.
A tree is 20 feet tall and has a circumference of 3 feet. There is a vine that winds seven equally spaced times around the tree and reaches the top. What is the length of the vine?

A comparison of the Greek and Chinese approach to the idea of similarity.

On Triangles, by Regiomontanus (Johannes M�ller) (1436-1476), written in 1464 but not published until 1533.
If an equilateral triangle whose area is equal to 10,000 square feet be surrounded by a walk of uniform width, and equal to the area of the inscribed circle, what is the width of the walk?