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Find the area of the purple shaded region

Find the area of the purple shaded region. Express result to the accuracy of 3 decimal.

Correct answers: 45

The first user who solved this task is Sanja Šabović.

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Vic Henley: Soccer Heckling

All the British fans start singing to the German fans, If you won the war, stand up! Right, I think this is the greatest thing Ive ever heard at a sporting event because theres no snappy comeback for that, is there?

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Adding machine patent

In 1888, William Seward Burroughs of St. Louis, Missouri, received patents on four adding machine applications (No. 388,116-388,119), the first U.S. patents for a "Calculating-Machine" that the inventor would continue to improve and successfully market. One year after making his first patent application on 10 Jan 1885, he incorporated his business as the American Arithmometer Corporation of St. Louis, in Jan 1886, with an authorized capitalization of $100,000. After Burrough's early death in 1898, after moving from St. Louis to Detroit, Michigan, that company reorganized as the Burroughs Adding Machine Co., incorporated in Jan 1905, with a capital of $5 million. The new name was in tribute to the inventor.«

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