A tree is planted at each Lattice Point in a circular orchard which has Center at the Origin and Radius . If the radius of trees exceeds units, one is unable to see out of the orchard in any direction. However, if the Radii of the trees are , one can see out at certain Angles.

**References**

Honsberger, R. ``The Orchard Problem.'' Ch. 4 in *Mathematical Gems I.*
Washington, DC: Math. Assoc. Amer., pp. 43-52, 1973.

© 1996-9

1999-05-26