Finding the erased distance with the other distances...
Source:
February 19, 2011
geometry unsolvedgeometry
Problem Statement
There are points on the plane. All pairwise distances between two points have been recorded.
A single record has been erased. Is it always possible to restore it using the remaining records?
Suppose no three points are on a line, and records were erased. What is the maximum value of such that restoration of all the erased records is always possible?