calculate the area of circle.


					Area of circle=π*radius of circle*radius of circle
π=3.1415926535897.... taking pi upto 2 decimal places
radius of circle=10cm
area of circle==3.14*10*10=314sq cm

Enter the radius of circle
Area of circle=452.15999999999997


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					import java.util.Scanner;
public class areaOfCircle
    public static void main(String args[])  
        Scanner sc=new Scanner(;
        System.out.println("Enter the radius of circle");
        double r=sc.nextDouble();
        //pi=3.1415926535897.... taking pi upto 2 decimal places
        double pi=3.14;
        /*Formula of area of circle =pi*r*r */
        double area=pi*r*r;  
        System.out.println("Area of circle="+area);  


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