Прикольная задача 11.5 с сегодняшнего региона. Найдите сумму красного с синего угла. От себя, правда, скажу, что я против накладывания противоестественных лишних условий...
В треугольнике ABC с углом 100° при вершине A медианы BK и CN пересекаются в точке M. Прямая, проходящая через точку M и параллельная BC, пересекает описанную окружность треугольника AKN в точках Q и P. Найдите сумму углов BPC и BQC.
Прикольная задача 11.5 с сегодняшнего региона. Найдите сумму красного с синего угла. От себя, правда, скажу, что я против накладывания противоестественных лишних условий...
В треугольнике ABC с углом 100° при вершине A медианы BK и CN пересекаются в точке M. Прямая, проходящая через точку M и параллельная BC, пересекает описанную окружность треугольника AKN в точках Q и P. Найдите сумму углов BPC и BQC.
Andrey, a Russian entrepreneur living in Brazil who, fearing retaliation, asked that NPR not use his last name, said Telegram has become one of the few places Russians can access independent news about the war. The next bit isn’t clear, but Durov reportedly claimed that his resignation, dated March 21st, was an April Fools’ prank. TechCrunch implies that it was a matter of principle, but it’s hard to be clear on the wheres, whos and whys. Similarly, on April 17th, the Moscow Times quoted Durov as saying that he quit the company after being pressured to reveal account details about Ukrainians protesting the then-president Viktor Yanukovych. You may recall that, back when Facebook started changing WhatsApp’s terms of service, a number of news outlets reported on, and even recommended, switching to Telegram. Pavel Durov even said that users should delete WhatsApp “unless you are cool with all of your photos and messages becoming public one day.” But Telegram can’t be described as a more-secure version of WhatsApp. Russians and Ukrainians are both prolific users of Telegram. They rely on the app for channels that act as newsfeeds, group chats (both public and private), and one-to-one communication. Since the Russian invasion of Ukraine, Telegram has remained an important lifeline for both Russians and Ukrainians, as a way of staying aware of the latest news and keeping in touch with loved ones. In December 2021, Sebi officials had conducted a search and seizure operation at the premises of certain persons carrying out similar manipulative activities through Telegram channels.
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