Question

A triangle is valid if the sum of all the three angles is equal to 180 degrees. Write a Java program that asks the user to enter three integers as angles in degrees and check whether a triangle is valid or not. Write output with proper statements. (Use these values -Angle1 = 350, Angle2 = 450, Angle3 = 100)

Answer 1

Answer:

Angle3 = 100

Explanation:

Answer 2

Program :

import java.util.*;

public class MyClass {

   public static void main(String args[])

   {

       Scanner Sc = new Scanner(System.in);

       int a1 , a2 , a3;

       System.out.print("Enter Angle 1 : ");

       a1 = Sc.nextInt();

       System.out.print("Enter Angle 2 : ");

       a2 = Sc.nextInt();

       System.out.print("Enter Angle 3 : ");

       a3 = Sc.nextInt();

       if(a1 + a2 + a3 == 180)

       {

           System.out.print("Triangle is valid. \nBecause the sum of angles is : "+(a1 + a2 + a3));

       }

       else

       {

           System.out.print("Triangle is not valid. \nBecause the sum of angles is : "+(a1 + a2 + a3));

       }

   }

}

Output :

Enter Angle 1 : 350

Enter Angle 2 : 450

Enter Angle 3 : 100

Triangle is not valid.

Because the sum of angles is : 900