British flag theorem British flag theorem In Euclidean geometry, the British flag theorem says that if a point "P" is chosen inside rectangle "ABCD" then the sum of the squared Euclidean distances from "P" to two opposite corners of the rectangle equals the sum to the other two opposite corners. As an equation: The theorem also applies to points outside the rectangle, and more generally to the distances from a point in Euclidean space to the corners of a rectangle embedded into the space. Even more generally, if the sums of squared distances from a point "P" to the two pairs of opposite
Glossary of names for the British as "Tanland". The name Tommy for any soldier in the British Army is particularly associated with World War I. The German, the French and the British Commonwealth armies used the name "Tommy" for British soldiers. "Tommy" is derived from the name "Tommy Atkins" which had been used as a generic name for a soldier for many years (and had been used as an example name on British Army registration forms). The precise origin is the subject of some debate, but it is known to have been used as early as 1743. Rudyard Kipling published the poem "Tommy" (part of the