Question

Скласти програму знаходження довжини кола. Реалізувати її в середовищі програмування Pascal.

Answer 1

Ответ:

program z_1;

var P, R, S: real;

begin

 write('Введите радиус круга: ');

 read(R);

 writeln('Длина окружности: ', 2*pi*R);

 writeln('Длина окружности: ', pi*R*R);

end.

Объяснение:

Answer 2

Program to Calculate the Circumference of a Circle in Pascal

To calculate the circumference of a circle, you can use the formula: C = 2 * π * r, where C is the circumference and r is the radius of the circle.

Here's an example program in Pascal that calculates the circumference of a circle:

program CalculateCircumference;
const
  PI = 3.14159; // Approximation of pi

var
  radius, circumference: real;

begin
  // Prompt the user to enter the radius of the circle
  writeln('Enter the radius of the circle: ');
  readln(radius);

// Calculate the circumference
  circumference := 2 * PI * radius;

// Display the result
  writeln('The circumference of the circle is: ', circumference:0:2);
end.

In this program, we declare a constant `PI` with an approximation of the value of pi. We then declare two variables: `radius` to store the user input for the radius, and `circumference` to store the calculated circumference.

The program prompts the user to enter the radius of the circle using the `writeln` and `readln` statements. It then calculates the circumference using the formula `2 * PI * radius` and stores the result in the `circumference` variable.

Finally, the program displays the calculated circumference using the `writeln` statement.

You can run this program in a Pascal programming environment, such as Turbo Pascal or Free Pascal, to calculate the circumference of a circle.

Please note that the value of pi used in this program is an approximation. For more accurate results, you can use a more precise value of pi or a built-in constant provided by the Pascal programming environment.

I hope this helps! Let me know if you have any further questions.