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
Flag of the United States author and U.S. naval officer George H. Preble: In the above quote, the Chinese words are written phonetically based on spoken Cantonese. The names given were common usage in the nineteenth and early twentieth centuries. Vietnam has borrowed the term for the United States, as or ("Flower Flag") in Vietnamese language. Chinese now refer to the United States as . "Měi" is short for "Měilìjiān" (, phono-semantic matching of "American") and "guó" means "country", so this name is unrelated to the flag. However, the "flower flag" terminology persists in some places today: for example, American Ginseng is called "flower flag