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Pi Approximation Day is observed on July 22 (22/7 in the day/month date format), since the fraction 22 ⁄ 7 is a common approximation of π, which is accurate to two decimal places and dates from Archimedes. [33] In Indonesia, a country that uses the DD/MM/YYYY date format, some people celebrate Pi Day every July 22. [34] Tau Day, also known ...
Math enthusiasts around the world, from college kids to rocket scientists, celebrate Pi Day on Thursday, which is March 14 or 3/14 — the first three digits of an infinite number with many ...
Pi Day is celebrated each year on March 14 because the date's numbers, 3-1-4 match the first three digits of pi, the never-ending mathematical number. "I love that it is so nerdy.
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According to the Collins English Dictionary, a national flag is "a flag that represents or is an emblem of a country." [1] The word country can be used to refer to a sovereign state, sometimes also called an independent state. [2] It is customary in international law that states adopt a flag to distinguish themselves from other states. [3]
The national flag of the United States, often referred to as the American flag or the U.S. flag, consists of thirteen horizontal stripes, alternating red and white, with a blue rectangle in the canton bearing fifty small, white, five-pointed stars arranged in nine offset horizontal rows, where rows of six stars alternate with rows of five stars.
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Cyber-flag (french site) North American Vexillological Association; List of Flags in the Flags of the World Database; The World All Countries National Flags; Interactive Flag Designs Flag Designs using evolutionary algorithms and search world flags using image similarity; Car Flag Design; CIA World Factbook; Extensive list of similar flags from ...