Problem 149 Answer

The treasure chest can be in one of two places. Find the midpoint of the two trees and walk in either direction on the line perpendicular to the line that contains both trees. Stop after walking half the distance between the two trees and dig. If the treasue isn't there then walk the other direction from the midpoint of the two trees and it must be there.

Thanks to the Geometry Forum for this problem.

Michael Shackleford, ASA, October 21, 1999

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