Smart Code For YOU

Write a C++ program to check whether a triangle is valid or not, when the three angles of the triangle are entered by the user. A triangle is valid if the sum of all the three angles is equal to 180 degrees.

Program Code:

#include<iostream>

using namespace std;

int main()

{

int first_angle;

int second_angle;

int third_angle;

cout<<"Enter the first angle of triangle:";

cin>>first_angle;

cout<<endl;

cout<<"Enter the second angle of triangle:";

cin>>second_angle;

cout<<endl;

cout<<"Enter the third angle of triangle:";

cin>>third_angle;

cout<<endl;

if (first_angle + second_angle + third_angle == 180)

{

cout<<"Triangle is valid";

}

else

{

cout<<"Triangle is not valid";

}

return 0;

}

The program output is tested on www.jdoodle.com

Output:

Enter the first angle of triangle: 120

Enter the second angle of triangle: 40

Enter the third angle of triangle: 20

Triangle is valid

Thanks

Mukesh Rajput