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Given a right triangle where you know the length of the base and the sum of the perpendicular side and the hypotenuse.

In the middle of the 18th century, King Frederick the Great of Prussia became interested in creating a lottery to raise money. As was his custom when mathematical matters were involved, he called upon Leonhard Euler for counsel.
Heron of Alexandria (ca 200) wrote on many aspects of applied mathematics.
A survey of concepts of infinite sets over the centuries.
An English translation of Eratosthenes' Geography, which includes "On the Measurement of the Earth."
The edge of a cloud is at an altitude of 20 degrees and the sun above it at 35 degrees. The shadow cast by the edge of the cloud fall on a object 2300 yards away, how high is the cloud?
The history of apportionment of representatives in the U.S. Congress, from the 1790s until today, along with a discussion of the mathematics involved in the various methods.
There is much to see in this museum related to the history of mathematics.
One hundred men besieged in a castle, have sufficient food to allow each one bread to the weight of 14 lot a day for ten months.
Suppose that for every 4 cows a farmer has, he should plow 1 acre of land, and allow 1 acre of pasture for every 3 cows; how many cows could he keep on 140 acres?