valid triangle using angles
/**
* C program to check whether a triangle is valid or not if angles are given
*/
#include <stdio.h>
int main()
{
int angle1, angle2, angle3, sum;
/* Input all three angles of triangle */
printf("Enter three angles of triangle: \n");
scanf("%d%d%d", &angle1, &angle2, &angle3);
/* Calculate sum of angles */
sum = angle1 + angle2 + angle3;
/*
* If sum of angles is 180 and
* angle1, angle2, angle3 is not 0 then
* triangle is valid.
*/
if(sum == 180 && angle1 > 0 && angle2 > 0 && angle3 > 0)
{
printf("Triangle is valid.");
}
else
{
printf("Triangle is not valid.");
}
return 0;
}