Write a C program to check whether a triangle can be formed by the given value for the angles.

Source code:

 //Write a C program to check whether a triangle can be formed by the given value for the angles

#include <stdio.h>

int main()

{

    int anga, angb, angc, sum, flag;

    printf("Enter three angles:");

    scanf("%d %d %d", &anga, &angb, &angc); 

/* Calculate the sum of all angles of triangle */

    sum = anga + angb + angc;

    /* Check whether sum=180 then its a valid triangle otherwise not */

    if(sum == 180)

    flag = 1;

    else

        flag = 0;

if (flag == 1)

    {

        printf("The triangle is valid.");

    }

    else

    {

        printf("The triangle is not valid.");

    }

    return 0;

}

Or, Source code:

#include <stdio.h>

int main()

{

    int anga, angb, angc, sum;

    printf("Enter three angles:");

    scanf("%d %d %d", &anga, &angb, &angc); 

    

    sum = anga + angb + angc;

    if(sum == 180)

    printf("The triangle is valid.");

    else

        printf("The triangle is not valid.");

    return 0;

}

Output: