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#начинающим

На рисунке изображен паркет из равных прямоугольных треугольников. Произвольные прямоугольные треугольники для такой схемы не подойдут.

Найдите соотношение сторон в этих треугольниках.

Рисунок и задача из журнала «Квантик» №7, 2017, статья Сергея Маркелова «Жесткие паркеты»



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#начинающим

На рисунке изображен паркет из равных прямоугольных треугольников. Произвольные прямоугольные треугольники для такой схемы не подойдут.

Найдите соотношение сторон в этих треугольниках.

Рисунок и задача из журнала «Квантик» №7, 2017, статья Сергея Маркелова «Жесткие паркеты»

BY Геометрия-канал




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Telegram has gained a reputation as the “secure” communications app in the post-Soviet states, but whenever you make choices about your digital security, it’s important to start by asking yourself, “What exactly am I securing? And who am I securing it from?” These questions should inform your decisions about whether you are using the right tool or platform for your digital security needs. Telegram is certainly not the most secure messaging app on the market right now. Its security model requires users to place a great deal of trust in Telegram’s ability to protect user data. For some users, this may be good enough for now. For others, it may be wiser to move to a different platform for certain kinds of high-risk communications. Pavel Durov, a billionaire who embraces an all-black wardrobe and is often compared to the character Neo from "the Matrix," funds Telegram through his personal wealth and debt financing. And despite being one of the world's most popular tech companies, Telegram reportedly has only about 30 employees who defer to Durov for most major decisions about the platform. The Dow Jones Industrial Average fell 230 points, or 0.7%. Meanwhile, the S&P 500 and the Nasdaq Composite dropped 1.3% and 2.2%, respectively. All three indexes began the day with gains before selling off. For tech stocks, “the main thing is yields,” Essaye said. Artem Kliuchnikov and his family fled Ukraine just days before the Russian invasion.
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