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Convergence articles

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A compilation of ethnomathematical ideas from around the world.

Two travelers, starting at the same time from the same point, travel in opposite directions round a circular railway.

How high above the earth must a person be raised that he [or she] may see 1/3 of its surface?

In a rectangle, given the diagonal and perimeter, find the sides

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

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?

There are two numbers which are to each other as 5 and 6 and the sum of their squares is 2196. What are the numbers?

A merchant gave a university 2,814 ducats on the understanding that he was to be paid back 618 ducats per year for 9 years, at the end of which the 2,814 ducats should be considered as paid.

A study of Victorian idealism and its relation to religion, as exemplified in the work of three 19th century British mathematicians.

In a right triangle, having been given the perimeter, a, and the length of the perpendicular from the right-angled vertex to the hypotenuse, b, it is required to find the length of the hypotenuse.

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