Квадрат разрезан на прямоугольники. В каждом прямоугольнике отмечена одна сторона. Доказать, что сумма длин отмеченных сторон не меньше стороны квадрата.
Квадрат разрезан на прямоугольники. В каждом прямоугольнике отмечена одна сторона. Доказать, что сумма длин отмеченных сторон не меньше стороны квадрата.
BY Геометрия-канал
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Founder Pavel Durov says tech is meant to set you free But the Ukraine Crisis Media Center's Tsekhanovska points out that communications are often down in zones most affected by the war, making this sort of cross-referencing a luxury many cannot afford. It is unclear who runs the account, although Russia's official Ministry of Foreign Affairs Twitter account promoted the Telegram channel on Saturday and claimed it was operated by "a group of experts & journalists." Asked about its stance on disinformation, Telegram spokesperson Remi Vaughn told AFP: "As noted by our CEO, the sheer volume of information being shared on channels makes it extremely difficult to verify, so it's important that users double-check what they read." In 2014, Pavel Durov fled the country after allies of the Kremlin took control of the social networking site most know just as VK. Russia's intelligence agency had asked Durov to turn over the data of anti-Kremlin protesters. Durov refused to do so.
from br
