/*Program for determining wheather a given triangle is a right angled
  triangle or not*/
main()
{
 float a,b,c;
 int x;
 clrscr();
 x=111;
 while(x!=0)
 {
  clrscr();
  printf("\n\tThis program will help you to determine wheather a given triangle is\n\ta right angled triangle or not.\n\n\t\t\tType 1 to continue and 0 to exit : ");
  scanf("%d",&x);
  switch(x)
  {
   case 1: printf("\n\tPlease note that all measures fed should be in the same unit\n\tof measurement, regardless of what unit you use to measure\n\tthe dimensions required.");
	   printf("\n\n\tEnter the measure of the first side of the triangle : ");
	   scanf("%f",&a);
	   printf("\n\tEnter the measure of the second side of the triangle : ");
	   scanf("%f",&b);
	   printf("\n\tEnter the measure of the third side of the triangle : ");
	   scanf("%d",&c);
	   if(((a*a)==(b*b)+(c*c))||((b*b)==(a*a)+(c*c))||((c*c)==(b*b)+(a*a)))
	     printf("\n\n\t RESULT : The given triangle is a right angled triangle.");
	   else
	     printf("\n\n\t RESULT : The given triangle is NOT a right angled triange.");
	   printf("\n\n\n\tPress any key to continue........");
	   getch();
	   break;
   case 0: printf("\n\n\tThe program is terminated on your request.\n\tPress any key to return to the object file........");
	   getch();
	   break;
   default:printf("\n\n\t\t\tINVALID INPUT\n\n\t\t\tPress any key to continue........");
	   getch();
	   break;
  }
 }
}