E648  Solutio facilis problematis, quo quaeritur circulus, qui datos tres circulos tangat
(An easy solution of a problem, in which a circle is searched for, given three circles tangent to it)
Summary:
Euler gives us three points, A, B, and C, the distances between them, and that they are centers of circles
of radius a, b and c respectively. He finds a point O, the center of a circle, and the radius, x,
of that circle, such that the circle is tangent to each of the three given circles.
Publication:

Originally published in Nova Acta Academiae Scientarum Imperialis Petropolitinae 6, 1790, pp. 95101

Opera Omnia: Series 1, Volume 26, pp. 270  275
Documents Available:
 Original Publication: E648
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