British flag theorem that and by a similar argument the squared lengths of the distances from "P" to the other three corners can be calculated as Therefore: This theorem takes its name from the fact that, when the line segments from "P" to the corners of the rectangle are drawn, together with the perpendicular lines used in the proof, the completed figure somewhat resembles a Union Flag. 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
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