Question

Q-2) In a right triangle, the square of the length of one side is equal to the sum of 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 or not.

Answer 1

Since you have not mentioned the programming language, I have answered in C++. In case, you need any other programming language, then let me know in the comment section.

Please look at my code and in case of indentation issues check the screenshots.

-------------main.cpp---------------

#include <iostream>
using namespace std;

int main()
{
   float side1, side2, side3;
   cout << "Enter the length of side1: ";       //read 3 sides
   cin >> side1;
   cout << "Enter the length of side2: ";
   cin >> side2;
   cout << "Enter the length of side3: ";
   cin >> side3;

   if(side1*side1 == side2*side2 + side3*side3)       //check if sum squares of side2, side3 is equal to side1 square
       cout << "The triangle is a right angled triangle" << endl;
  
   else if(side2*side2 == side1*side1 + side3*side3)   //check if sum squares of side1, side3 is equal to side2 square
       cout << "The triangle is a right angled triangle" << endl;

   else if(side3*side3 == side1*side1 + side2*side2)   //check if sum squares of side1, side2 is equal to side3 square
       cout << "The triangle is a right angled triangle" << endl;

   else
       cout << "The triangle is a NOT a right angled triangle" << endl;

   return 0;  
}

--------------Screenshots--------------

--------------------Output-----------------------

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