program answer;
var
r: real := 0;
begin
writeln('Вычисление площади кргуа.');
writeln('Введите радиус и нажмите ENTER');
readln(r);
writeln('Площадь кргуа:', (PI * r * r):4:2, 'кв. См.');
end.
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You can use [html][/html], [css][/css], [php][/php] and more to embed the code. Urls are automatically hyperlinked. Line breaks and paragraphs are automatically generated.