Задача. Боковые стороны трапеции 𝐴𝐵 и 𝐶𝐷 пересекаются в точке 𝑃, а её диагонали в точке 𝑄. Известно, что описанная окружность треугольника 𝑃𝐵𝐶 касается средней линии трапеции. Биссектриса угла 𝑃 пересекает 𝐴𝐷 в точке 𝐾. Докажите, что 𝐾𝑄 ⊥ 𝐴𝐷.
Задача. Боковые стороны трапеции 𝐴𝐵 и 𝐶𝐷 пересекаются в точке 𝑃, а её диагонали в точке 𝑄. Известно, что описанная окружность треугольника 𝑃𝐵𝐶 касается средней линии трапеции. Биссектриса угла 𝑃 пересекает 𝐴𝐷 в точке 𝐾. Докажите, что 𝐾𝑄 ⊥ 𝐴𝐷.
"We as Ukrainians believe that the truth is on our side, whether it's truth that you're proclaiming about the war and everything else, why would you want to hide it?," he said. The original Telegram channel has expanded into a web of accounts for different locations, including specific pages made for individual Russian cities. There's also an English-language website, which states it is owned by the people who run the Telegram channels. In the past, it was noticed that through bulk SMSes, investors were induced to invest in or purchase the stocks of certain listed companies. 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. Markets continued to grapple with the economic and corporate earnings implications relating to the Russia-Ukraine conflict. “We have a ton of uncertainty right now,” said Stephanie Link, chief investment strategist and portfolio manager at Hightower Advisors. “We’re dealing with a war, we’re dealing with inflation. We don’t know what it means to earnings.”
from hk
