Area of the Circle in Pascal

 A simple program that I wrote using Pascal programming language that will ask the user to give radius value and then our program will compute the area of the circle and display the results on the screen.

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Program Listing

program AreaOfCircle;

var
  radius, area: real;

begin
  writeln;
  write('Area of the Circle in Pascal');
  writeln;
  write('Enter the radius of the circle: ');
  readln(radius);
  
  area := 3.14159 * sqr(radius);
  
  writeln('The area of the circle is ', area:0:2);
  writeln;
  write('End of Program');
  writeln;
end.