Question

java create a class sphere to accept the radius and find the area and perimeter​

Answer 1

Answer:

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.

Java area and perimeter of a circle

Explanation:

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Answer 2

Answer:

use io class

Explanation:

import java.io.*;

public class sphere

{

   public static void main(String args[]) throws IOException

   {

       BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

System.out.println("Enter the radius ");

int r,a,p;

r = Integer.parseInt(in.readLine());

a = 22/7*r*r:

p = 2*22/7*r;

System.out.println("area= "+a);

System.out.println("perimeter= "+p);

}

}