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Find the area of the shaded figure

Express result to the accuracy of 3 decimal.

Correct answers: 22

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math

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It's the drinking...

The patient was lying in bed, still groggy from the effects of the recent operation. His doctor came in, looking very glum.

"I can't be sure what's wrong with you," the doctor said. "I think it's the drinking."

"Okay," the patient said. "Can we get an opinion from a doctor who's sober?"

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Sergey Pavlovich Korolev

Born 12 Jan 1907; died 14 Jan 1966 at age 59.Soviet rocket engineer whodesignedguided missiles, rockets, and spacecraft. He was one of the founders of Moscow Group for the Study of Reactive Motion. In 1933, he participated in the Soviet Union's first launch of a liquid-propellant rocket. Because he was not a member of the Communist Party, he spent much of his life under house arrest. After demonstrating his expertise in the modification of captured V2 rockets, Korolev directed the design, testing, construction, and launching of the Vostok spacecraft, and most of the U.S.S.R.'s other projects. Around 1958, Korolev argued for the pursuit of manned space flight instead of military reconnaissance satellites. After much debate, the Vostok project was approved provided the launch vehicle could also be useful to the military.

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