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A merchant woman buys and sells apples and pears for Denaros. How much did she invest in apples; how much in pears?
There is a regular pentagon. The length of its side is a. Find the area of the pentagon. Generalize your result for a nonagon.
Two ants are 100 paces apart, crawling back and forth along the same path. The first goes 1/3 pace forward a day and returns 1/4 pace; the other goes forward 1/5 pace and returns 1/6 pace. How many days before the first ant overtakes the second?

A bibliographical reference to mathematics books printed in the new world before 1700.

A biography stressing Agnesi's deep commitment to help those in need.
There is a mound of earth in the shape of a frustum of a cone.
The ICM meets every four years. This year, the meeting takes place August 22-30 and is being held in Madrid. Section 20 of the Congress deals with the history of mathematics.
Prove that if the sums of the square opposite sides of any quadrilateral are equal, its diagonals interect at right angles.
On a certain ground stands two poles 12 feet apart, the lesser pole is 35 ft. in height and the greater 40 ft. It is sought, if the greater pole will lean on the lesser, then in what part will it touch?
This 1989 revision of the 1969 NCTM yearbook still provides wonderful suggestions for using the history of mathematics in the classroom.

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