/* *Number:3.28 *Author:yzs *Time:2021.11.13 */ import java.util.Scanner; public class triangle { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("Enter r1's center x-, y-coordinates, width, and height:"); double r1_x=input.nextDouble(); double r1_y=input.nextDouble(); double r1_w=input.nextDouble(); double r1_h=input.nextDouble(); System.out.println("Enter r2's center x-, y-coordinates, width, and height:"); double r2_x=input.nextDouble(); double r2_y=input.nextDouble(); double r2_w=input.nextDouble(); double r2_h=input.nextDouble(); double d=Math.sqrt(Math.pow(r1_x-r2_x,2)+Math.pow(r1_y-r2_y,2)); if (d