**Question:**

Write a Java Program to accept three positive Integers as input and check whether the given numbers farm a right angle Triangle or not. If the input numbers form a triangle print “RightAngle Triangle” else “Not a right-angle Triangle”.

In case of zero or negative inputs print “Invalid”.

Note: Rule to form a right-angle triangle is, sum of square of any two numbers should be equal to the square of third number.

Sample input 1:

Enter three sides:

3

4

5

Sample output:

Right-Angle Triangle

Sample input 2:

Enter three sides:

32

0

5

Sample output 2:

Invalid

**Code:**

**Main.java**

import java.util.Scanner; public class right_angle_triangle { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter three sides:"); int a = sc.nextInt(); int b = sc.nextInt(); int c = sc.nextInt(); if(a>0 && b>0 && c>0){ int a1 = a*a; int b1 = b*b; int c1 = c*c; if(c1== a1+b1 || b1==a1+c1 || a1==b1+c1){ System.out.println("Right-Angle Triangle"); } else { System.out.println("Not a right-angle Triangle"); } } else{ System.out.println("Invalid"); } } }

**Output:**

Enter three sides: 3 45 2 Not a right-angle Triangle

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