Write a C program to input all sides of a triangle and check

Write a C++ program to input all sides of a triangle and check whether these sides represent a triangle that is valid or not valid. A triangle is valid if and only if sum of any two sides is > the third side. Suppose a. b, c are the three sides of a triangle, then the triangle can valid only if the following three conditions are all time: a + b Greater-Than c b + c Greater-Than a a + c Greater-Than b

Solution

#include<iostream>
using namespace std;

int main()
{
int a,b,c;
  
cout << \"Input the first side of triangle : \";
cin >> a;
  
cout << \"Input the second side of triangle : \";
cin >> b;
  
cout << \"Input the third side of triangle : \";
cin >> c;
  
if((a+b)>c && (b+c)>a && (c+a)>b)
cout << \"It\'s a valid triangle.\";
else
cout << \"It\'s invalid triangle.\";
  
return 0;
}

OUTPUT:

Input the first side of triangle : 5

Input the second side of triangle : 3

Input the third side of triangle : 8

It\'s invalid triangle.