lingkaran

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package praktikum2;

import java.util.Scanner;
public class tugas1 {
 
    public static void main(String[] args){
        Scanner masukan = new Scanner(System.in);
        float r;
        float luas, keliling;
        float phi = 3.14f;
        System.out.println(" nilai Lingkaran");
        System.out.println("Masukkan nilaI Jari-jari yang anda inginkan = ");
        r = masukan.nextFloat();
        luas = phi*(r*r);
        keliling = 2*phi*r;
        System.out.println(" nilai Luas = "+luas);
        System.out.println(" nilai Keliling = "+keliling);
    }
}