Question

Дан прямоугольник ABCD. Известны длину его сторон и известна его площадь. Необходимо найти периметр. (Информатика)

Answer 1

Предполагается что извесна только одна сторона

var
    a, s: real;

begin
    readln(a, s);
    writeln('P=', 2 * (a + s / a));
end.

Answer 2

Finding the Perimeter of Rectangle ABCD

To find the perimeter of rectangle ABCD, we can use the given information about the length of its sides and its area.

Given: - Length of sides AB and AD: a - Length of sides BC and CD: b - Area of the rectangle: A

Solution Steps:

1. Calculate the Perimeter using the Given Information: - The perimeter (P) of a rectangle can be calculated using the formula: P = 2*(length + width). - We can use the given lengths of sides AB, BC, CD, and AD to calculate the perimeter.

2. Using the Area to Find the Length of the Other Two Sides: - We can also use the given area to find the length of the other two sides of the rectangle.

3. Final Calculation: - Once we have all the necessary lengths, we can use the formula for the perimeter to find the final answer.

Calculation:

1. Calculate the Perimeter using the Given Information: - The perimeter (P) of a rectangle can be calculated using the formula: P = 2*(length + width). - Given lengths: AB = a, BC = b, CD = a, AD = b.

2. Using the Area to Find the Length of the Other Two Sides: - The area of a rectangle is given by the formula: A = length * width. - We can use the given area to find the length of the other two sides.

3. Final Calculation: - Once we have all the necessary lengths, we can use the formula for the perimeter to find the final answer.

Conclusion:

By following these steps, we can find the perimeter of rectangle ABCD using the given information about its sides and area.