program CircleArea; var radius, area: real; function CalculateAreaOfCircle(radius: real): real; const pi = 3.14; begin CalculateAreaOfCircle := pi * radius * radius; end; begin write('Enter the radius of the circle: '); readln(radius); area := CalculateAreaOfCircle(radius); writeln('Area of the circle: ', area:0:2); writeln('30% of the area of the circle: ', 0.3 * area:0:2); end.
var
radius, area: real;
function CalculateAreaOfCircle(radius: real): real;
const
pi = 3.14;
begin
CalculateAreaOfCircle := pi * radius * radius;
end;
begin
write('Enter the radius of the circle: ');
readln(radius);
area := CalculateAreaOfCircle(radius);
writeln('Area of the circle: ', area:0:2);
writeln('30% of the area of the circle: ', 0.3 * area:0:2);
end.