A Surveying Problem which asks: Determine the position of an unknown accessible point by its bearings from three inaccessible known points , , and .

**References**

Dörrie, H. ``Annex to a Survey.'' §40 in *100 Great Problems of Elementary Mathematics: Their History and Solutions.*
New York: Dover, pp. 193-197, 1965.

© 1996-9

1999-05-26