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Find the area of the shaded figure

Express result to the accuracy of 3 decimal.

Correct answers: 60

The first user who solved this task is Djordje Timotijevic.

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Justice Prevailed

A junior partner in a law firm was sent to represent a long-term client. After days of trial, the case was won, the client acquitted and released.
Excited about his success, the attorney emailed the firm: "Justice prevailed."
The senior partner replied in haste, "Appeal immediately!"

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First newspaper weather map

In 1875, Sir Francis Galton published the first newspaper weather map - in The Times, London, England - now a standard feature in newspapers worldwide. He was the first to identify the anticyclone (as opposed to the cyclone), and introduced the use of charts showing areas of similar air pressure, as used on the modern weather map. Galton also devised several novel and ingenious mechanical instruments for recording information about the weather, while working at the Kew Observatory. He was also active as an explorer, anthropologist, statistician and criminologist. Galton was the first to place the study of fingerprints for identification on a scientific basis and so lay the groundwork for their use in criminal cases.[Image: Earlier work by Galton: a synchronous weather map of England drawn for 16 Jan 1861]

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