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В круг, площадь которого ровна 81пи см^2, вписан прямоугольный треугольник. найдите длину его гипотенузы

2.Які порівняння вживає Михайло Пляцковський у <<Пісні про усмішку>>?

 ПЕРЕВЕДИТЕ ПОЖАЛУЙСТА

British mass media include 820 radio stations, 531 television channels, 1598 newspapers and 1971 magazines - from 270 media owners. They all provide us with news. The most traditional medium of delivering news to the people is, of course, the newspaper.
National newspapers in the UK were traditionally divided by format, between serious, intelligent, quality newspapers -broadsheets -and the sensational, popular or red-top tabloid. Several of the broadsheet newspapers have now changed to tabloid or Berliner formats. ("Berliner" is about the same size as a tabloid, which is easy to open in public transport, but taller.) Even so, the difference in reputation between the two types still remains.
Broadsheets and 'broadsheet style' newspapers (serious ones but in "Berliner" or tabloid format) are "The Daily Telegraph", The Times"The Sunday Times", The Guardian"The Observer", "The Independent". Tabloids are "The Daily Express", "The Daily Mail", The Sun "The Mirror", The Daily Star, "The People", "The Daily Express".

CuSO4+H2O = CuO3 + N2SO4

NaOH + H2SO4 = Na2SO4 + H2O

Ba (NO3)2 + H2SO4 = BaSO4 + HNO3

Расставить коэффицентыи определить тип реакций помогите пожалуйста!

3.Запиши кілька прислів'їв про працю.