Q:

Write a C# Sharp program that takes the radius of a circle as input and calculate the perimeter and area of the circle

hamza
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2022-05-18
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Write a C# Sharp program that takes the radius of a circle as input and calculate the perimeter and area of the circle

JavaScript: Area and circumference of a circle

In geometry, the area enclosed by a circle of radius r is πr2. Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter.

The circumference of a circle is the linear distance around its edge.

Why is the area of a circle of a circle pi times the square of the radius?

Sample Output:

Input the radius of the circle :                                                                            
25 

Perimeter of Circle : 157
c# programming, Programming,
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hamza
2022-05-18
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using System;
public class Exercise5
{
    public static void Main()
    {
 
        double r,per_cir;
        double PI = 3.14;
        Console.WriteLine("Input the radius of the circle : ");
        r = Convert.ToDouble(Console.ReadLine());
        per_cir = 2 * PI * r;
        Console.WriteLine("Perimeter of Circle : {0}", per_cir);
        Console.Read();
    }
}

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