Question

In a right triangle, the square of the length of one side is equal to the sum of the squares of the lengths of the other two sides.

Write a program that prompts the user to enter the lengths of three sides of a triangle and then outputs a message indicating whether the triangle is a right triangle.

If the triangle is a right triangle, output It is a right-angled triangle

If the triangle is not a right triangle, output It is not a right-angled triangle

Answer 1

import java.util.Scanner;

public class Triangle {
   public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
       System.out.println("Enter 3 sides of triangle: ");
       double side1=sc.nextDouble();
       double side2=sc.nextDouble();
       double side3=sc.nextDouble();
       //checking if A^2+B^2=C^2
       if(side3*side3==(side1*side1)+(side2*side2)) {
           System.out.println("It is a right-angled triangle");
       }
       else {
           System.out.println("It is not a right-angled triangle\r\n");
       }
   }
}

Note : Please comment below if you have concerns. I am here to help you

If you like my answer please rate and help me it is very Imp for me