/* */ public static void main(String[] args) {

/* 7 */ Scanner input = new Scanner(System.in);

/* */

/* */

/* 10 */ System.out.print("Enter three points: ");

/* 11 */ double x1 = input.nextDouble();

/* 12 */ double y1 = input.nextDouble();

/* 13 */ double x2 = input.nextDouble();

/* 14 */ double y2 = input.nextDouble();

/* 15 */ double x3 = input.nextDouble();

/* 16 */ double y3 = input.nextDouble();

/* */

/* */

/* 19 */ double a = Math.sqrt((x2 - x3) * (x2 - x3) + (y2 - y3) * (y2 - y3));

/* */

/* 21 */ double b = Math.sqrt((x1 - x3) * (x1 - x3) + (y1 - y3) * (y1 - y3));

/* */

/* 23 */ double c = Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));

/* */

/* */

/* */

/* 27 */ double A = Math.toDegrees(Math.acos((a * a - b * b - c * c) / -2.0D * b * c));

/* */

/* 29 */ double B = Math.toDegrees(Math.acos((b * b - a * a - c * c) / -2.0D * a * c));

/* */

/* 31 */ double C = Math.toDegrees(Math.acos((c * c - b * b - a * a) / -2.0D * a * b));

/* */

/* */

/* */

/* 35 */ System.out.println("The three angles are " + (

/* 36 */ Math.round(A * 100.0D) / 100.0D) + " " + (

/* 37 */ Math.round(B * 100.0D) / 100.0D) + " " + (

/* 38 */ Math.round(C * 100.0D) / 100.0D));

/* */ }