C Exercises: Check whether a triangle can be formed by given value

C Conditional Statement: Exercise-15 with Solution

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

Pictorial Presentation:

Sample Solution:

C Code:

#include <stdio.h>
void main()  
{  
    int anga, angb, angc, sum; //are three angles of a triangle  
 
    printf("Input three angles of triangle : ");  
    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)   
    {  
        printf("The triangle is valid.\n");  
    }  
    else  
    {  
        printf("The triangle is not valid.\n");  
    }  
 } 

Sample Output:

Input three angles of triangle : 40 55 65                                                                     
The triangle is not valid.

Flowchart:

C Programming Code Editor:

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