Точки M, N – середины сторон AB и BC треугольника АВС, точка G – его центроид. На дуге MN окружности (MNB) выбирается точка P, точка Q на PG такова, что PG : QG = 1 : 2 (P и Q по разные стороны от G). Точка D на прямой BP такова, что ∠ABC = ∠ADC. Точка E на окружности (ABC) такова, что QE || BD. (!) BQ = DE
Теперь к разминкам, которые никем не были решены, через какое-то небольшое время будут появляться подсказки!
Точки M, N – середины сторон AB и BC треугольника АВС, точка G – его центроид. На дуге MN окружности (MNB) выбирается точка P, точка Q на PG такова, что PG : QG = 1 : 2 (P и Q по разные стороны от G). Точка D на прямой BP такова, что ∠ABC = ∠ADC. Точка E на окружности (ABC) такова, что QE || BD. (!) BQ = DE
Теперь к разминкам, которые никем не были решены, через какое-то небольшое время будут появляться подсказки!
WhatsApp, a rival messaging platform, introduced some measures to counter disinformation when Covid-19 was first sweeping the world. Crude oil prices edged higher after tumbling on Thursday, when U.S. West Texas intermediate slid back below $110 per barrel after topping as much as $130 a barrel in recent sessions. Still, gas prices at the pump rose to fresh highs. The last couple days have exemplified that uncertainty. On Thursday, news emerged that talks in Turkey between the Russia and Ukraine yielded no positive result. But on Friday, Reuters reported that Russian President Vladimir Putin said there had been some “positive shifts” in talks between the two sides. Groups are also not fully encrypted, end-to-end. This includes private groups. Private groups cannot be seen by other Telegram users, but Telegram itself can see the groups and all of the communications that you have in them. All of the same risks and warnings about channels can be applied to groups. One thing that Telegram now offers to all users is the ability to “disappear” messages or set remote deletion deadlines. That enables users to have much more control over how long people can access what you’re sending them. Given that Russian law enforcement officials are reportedly (via Insider) stopping people in the street and demanding to read their text messages, this could be vital to protect individuals from reprisals.
from ua