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Convergence articles

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Given a rectangle, find the line through one vertex of minimum length that passes through the extensions of the two opposite sides.
A brief outline of policies for submission of articles to Loci.
The perimeters of two similar triangles are 45 and 135 respectively. One side of the first triangle has length 11″ and a second side, 19″. Find the lengths of the sides of the second triangle.
A lady being asked how old she was at the time of her marriage replied that the age of her oldest son was 13; that he was born 2 years after her marriage...
In a right triangle, let the perpendicular be 5 and the sum of the base and hypotenuse 25. Find the lengths of the base and hypotenuse
A journey through numbers from their earliest beginning in India to the proof of Fermat's Last Theorem by Wiles.
Fibonacci gave a practical rule for approximating the area of an equilateral triangle.

Three images from Kepler's 1609 Astronomia Nova, the text in which he introduced his first two laws of planetary motion

A copper water tank in the form of a rectangular parallelopiped is to made. If its length is to be a times its breadth, how high should it be that for a given capacity it should cost as little as possible?
Thumbnail sketches of statisticians throughout history.