program VolumeCalculator;
var
side, height, radius, baseSide, baseHeight: real;
volume: real;
choice: integer;
begin
writeln('Выберите фигуру для расчёта объёма:');
writeln('1 — Куб');
writeln('2 — Пирамида');
writeln('3 — Конус');
writeln('4 — Сфера');
readln(choice);
case choice of
1: begin
write('Введите длину ребра куба: ');
readln(side);
volume:= side * side * side;
writeln('Объём куба: ', volume:0:2);
end;
2: begin
write('Введите длину стороны основания пирамиды: ');
readln(baseSide);
write('Введите высоту пирамиды: ');
readln(height);
volume:= (baseSide * baseSide * height) / 3;
writeln('Объём пирамиды: ', volume:0:2);
end;
3: begin
write('Введите радиус основания конуса: ');
readln(radius);
write('Введите высоту конуса: ');
readln(height);
volume:= (pi * radius * radius * height) / 3;
writeln('Объём конуса: ', volume:0:2);
end;
4: begin
write('Введите радиус сферы: ');
readln(radius);
volume:= (4 * pi * radius * radius * radius) / 3;
writeln('Объём сферы: ', volume:0:2);
end
else
writeln('Неверный выбор!');
end;
end.
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