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Archimedes proved a formula for the area of a circle, according to which < <. [2] In Chinese mathematics , in the third century CE, Liu Hui found even more accurate approximations using a method similar to that of Archimedes, and in the fifth century Zu Chongzhi found π ≈ 355 / 113 ≈ 3.141593 {\displaystyle \pi \approx 355/113\approx 3. ...
Total area is taken from the United Nations Statistics Division unless otherwise noted. [3] Land and water are taken from the Food and Agriculture Organization unless otherwise noted. [4] The CIA World Factbook is most often used when different UN departments disagree. [1] Other sources and details for each entry may be specified in the ...
The area of one acre (red) superposed on an American football field (green) and Association football/soccer pitch (blue) 1 international acre is equal to the following metric units: 0.40468564224 hectare (A square with 100 m sides has an area of 1 hectare.) 4,046.8564224 square metres (or a square with approximately 63.61 m sides)
The Círculo de Bellas Artes programmes a wide variety of music, encompassing both classical and contemporary highbrow music, and the more innovative styles of popular music. Those who have performed here include Pierre Boulez , Luis de Pablo , Lila Downs , Tiken Jah Fakoly , Marianne Faithfull , Vinicio Capossela , Jane Birkin , María Joao ...