program rectangleArea;
varperimeter, side, width, length: integer;
beginwriteln('Enter the perimeter of the rectangle: ');readln(perimeter);
writeln('Enter the length of one side of the rectangle: ');readln(side);
width := (perimeter - 2 * side) div 2;length := side;
writeln('The area of the rectangle is: ', width * length);end.
program rectangleArea;
var
perimeter, side, width, length: integer;
begin
writeln('Enter the perimeter of the rectangle: ');
readln(perimeter);
writeln('Enter the length of one side of the rectangle: ');
readln(side);
width := (perimeter - 2 * side) div 2;
length := side;
writeln('The area of the rectangle is: ', width * length);
end.