#### English Title

An easy solution of a problem, in which a circle is searched for, given three circles tangent to it

#### Enestrom Number

648

#### Fuss Index

311

#### Original Language

Latin

#### Content 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.

#### Published as

Journal article

#### Published Date

1790

#### Written Date

1779

#### Original Source Citation

Nova Acta Academiae Scientiarum Imperialis Petropolitanae, Volume 6, pp. 95-101.

#### Opera Omnia Citation

Series 1, Volume 26, pp.270-275.

#### Record Created

2018-09-25