1) Существует ли тетраэдр, основания высот которого не принадлежат граням? 2) Существует ли выпуклый многогранник и точка внутри такая, что основания всех перпендикуляров, опущенных из нее на грани, не принадлежат граням?
1) Существует ли тетраэдр, основания высот которого не принадлежат граням? 2) Существует ли выпуклый многогранник и точка внутри такая, что основания всех перпендикуляров, опущенных из нее на грани, не принадлежат граням?
BY Геометрия с Ниловым
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The message was not authentic, with the real Zelenskiy soon denying the claim on his official Telegram channel, but the incident highlighted a major problem: disinformation quickly spreads unchecked on the encrypted app. Ukrainian President Volodymyr Zelensky said in a video message on Tuesday that Ukrainian forces "destroy the invaders wherever we can." In the past, it was noticed that through bulk SMSes, investors were induced to invest in or purchase the stocks of certain listed companies. Elsewhere, version 8.6 of Telegram integrates the in-app camera option into the gallery, while a new navigation bar gives quick access to photos, files, location sharing, and more. The regulator said it has been undertaking several campaigns to educate the investors to be vigilant while taking investment decisions based on stock tips.
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