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C Program to Check Whether a Triangle is Valid or Not If Angles are Given ?


Q:- Write a C Program to Check Whether a Triangle is Valid or Not If Angles are Given ?
      Input
        #include<stdio.h>
        #include<conio.h>
        int main()
   {
int a1,a2,a3,sum;
clrscr();
printf(“Enter Three Angles of Triangle =”);
scanf(“%d%d%d”,&a1,&a2,&a3);
sum = a1+a2+a3;
if(sum == 180 && a1 !=0 && a2!=0 && a3!=0)
{
printf(“Triangle is Valid.”);
}
else
{
printf(“Triangle is not Valid.”);
}
getch();
     }


Output

Enter Three Angles of Triangle =
30
60
90
Triangle is Valid.

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