A Surveying Problem: from the position of two known but inaccessible points and , determine the position of two unknown accessible points and by bearings from , , to and , , to .

**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

1999-05-25