In a given square, inscribe 4 equal circles so that...

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In a given square, inscribe 4 equal circles so that...

History of Maya calendars, including the modified base 20 number system used in them

Find the isoceles triangle of smallest area that circumscribes a circle of radius 1.

This is from a letter of June, 1695 in which Leibniz is discussing differentiation with Johann Bernoulli. The work in which these letters appear is the Virorum Celeberr. Got. Gul. Leibnitii et Johann Bernoulli Commercium Philosophicum et Mathematica, originally published in 1740.

The Euler Society was founded as the tercentennial of the birth of the prolific Swiss-born genius Leonhard Euler approaches. The 2006 meeting is the fifth annual meeting of the Society.

This is a collection of plates that Leonardo da Vinci created to illustrate De divina proportione of Luca Pacioli.

Determine the dimensions for a right-angled triangle, having been given the hypotenuse, and the side of the inscribed square.

Now there are three sisters who leave home together.

Given the frustum of a circular cone with height h.

Fibonacci gave a practical rule for approximating the area of an equilateral triangle.