Menghitung Keliling Lingkaran
16.35 | Author: 4CHI
import java.util.Scanner;

public class Keliling_Lingkaran {
public static void main (String[] args) {
double phi = 3.14; // deklarasi nilai phi
System.out.print("Masukan nilai r : "); // Menginputkan nilai jari-jari
Scanner in = new Scanner(System.in); // fungsi membaca inputan keyboard
float r = in.nextInt(); // fungsi membaca inputan keyboard
double rumus = 2*phi*r; // rumus menghitung keliling lingkaran
System.out.println("Keliling lingkaran adalah :"+rumus); //Menampilkan hasil
}
}
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