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A round pond sits in a rectangular garden. Its center is inaccessible; however, you know the distances from each corner of the garden to the center of the pond: 60, 52, 28, and 40 yards. What is the radius of the pond?
How Servois' failed attempt to construct a foundation for the calculus nonetheless helped shape modern mathematics
This website is connected to the book, The Joy of Pi. It has numerous interesting facts about pi, with links to additional sites.
This is the title page to the English version of Isaac Barrow's Geometrical Lectures, which were originally given in his position as Lucasian Professor of Mathematics at Cambridge University. These lectures contain one of the earliest statements and proofs of what is today known as the fundamental theorem of calculus.
A CD with eleven modules, each containing numerous activities designed to help secondary teachers use the history of mathematics to teach mathematics.
Four episodes in the history of geometry are discussed, where dynamic geometry helps in understanding the ideas.
A lion, a wolf and a fox each take a certain amount of time to eat a goat separately. How long would it take all these animals together to eat the goat?
A horse halving its speed every day runs 700 miles in 7 days.
A carpenter has undertaken to build a house in 20 days. He takes on another man and says; "If we build the house together, we can accomplish the work in 8 days!" How long would it take this other man to build the house working alone?