OLYMPGEOM Telegram 1575
Докажите, что ортоцентры отмеченных треугольников лежат на одной прямой, проходящей через точку пересечения диагоналей описанного четырехугольника.
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Докажите, что ортоцентры отмеченных треугольников лежат на одной прямой, проходящей через точку пересечения диагоналей описанного четырехугольника.

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End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance. During the meeting with TSE Minister Edson Fachin, Perekopsky also mentioned the TSE channel on the platform as one of the firm's key success stories. Launched as part of the company's commitments to tackle the spread of fake news in Brazil, the verified channel has attracted more than 184,000 members in less than a month. Ng was convicted in April for conspiracy to incite a riot, public nuisance, arson, criminal damage, manufacturing of explosives, administering poison and wounding with intent to do grievous bodily harm between October 2019 and June 2020. best-secure-messaging-apps-shutterstock-1892950018.jpg Telegram has announced a number of measures aiming to tackle the spread of disinformation through its platform in Brazil. These features are part of an agreement between the platform and the country's authorities ahead of the elections in October.
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