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Верю — не верю

Некоторые из приведенных ниже шести утверждений верны в общем случае. Какие?
Anonymous Poll
1. Если у двух четырехугольников совпадают все 4 вершины, то они имеют равные площади.
2. В геометрии Лобачевского для любого треугольника есть прямая, равноудалённая от всех его вершин.
3. Центр окружности, вписанной в египетский треугольник, равноудален от середин двух его сторон.
. Если р/б треугольник можно разрезать на три меньших р/б треугольника, то два из них равны.
5. Если прямая делит пополам площадь 4-угольника и 2 его стороны, то он параллелограмм или трапеция.
6. Если все вершины многогранника лежат на одной сфере, то этот многогранник выпуклый.
766 votes



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At this point, however, Durov had already been working on Telegram with his brother, and further planned a mobile-first social network with an explicit focus on anti-censorship. Later in April, he told TechCrunch that he had left Russia and had “no plans to go back,” saying that the nation was currently “incompatible with internet business at the moment.” He added later that he was looking for a country that matched his libertarian ideals to base his next startup. The regulator said it has been undertaking several campaigns to educate the investors to be vigilant while taking investment decisions based on stock tips. In view of this, the regulator has cautioned investors not to rely on such investment tips / advice received through social media platforms. It has also said investors should exercise utmost caution while taking investment decisions while dealing in the securities market. But Telegram says people want to keep their chat history when they get a new phone, and they like having a data backup that will sync their chats across multiple devices. And that is why they let people choose whether they want their messages to be encrypted or not. When not turned on, though, chats are stored on Telegram's services, which are scattered throughout the world. But it has "disclosed 0 bytes of user data to third parties, including governments," Telegram states on its website. Unlike Silicon Valley giants such as Facebook and Twitter, which run very public anti-disinformation programs, Brooking said: "Telegram is famously lax or absent in its content moderation policy."
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