Double

Proposed exercise

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Calculate the perimeter, area and diagonal of a rectangle, given its width and its height.

(Hint: use y = Math.Sqrt(x) to calculate a square root)

Output

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Solution

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using System;
public class Double
{
public static void Main()
{
double a, b;
double area, perimeter, diagonal;

Console.Write("Enter the width: ");
a = Convert.ToDouble(Console.ReadLine());

Console.Write("Enter the height: ");
b = Convert.ToDouble(Console.ReadLine());

perimeter = a*2 + b*2;
Console.WriteLine("Perimeter: {0}", perimeter);

area = a*b;
Console.WriteLine("Area: {0}", area);

diagonal = Math.Sqrt(a*a + b*b);
Console.WriteLine("Diagonal: {0}", diagonal);

}
}