Write a C program that reads three floating values and check if it is possible to make a triangle with them. Also calculate the perimeter of the triangle if the said values are valid.

 

/*Write a C program that
reads three floating values
and check if it is possible
to make a triangle with them.
Also calculate the perimeter
of the triangle if the said
values are valid.
Test Data :
Input the first number: 25
Input the second number: 15
Input the third number: 35
Expected Output:
Perimeter = 75.0
*/
#include <stdio.h>
int main()
{
  float num1,num2,num3,
  parameter,i;
  printf("Input the first\
number: ");
  scanf("%f",&num1);
  printf("Input the second\
number: ");
  scanf("%f",&num2);
  printf("Input the third\
number: ");
  scanf("%f",&num3);
  if(num1+num2>num3)
  {
    if(num2+num3>num2)
    {
      if(num1+num3>num1)
      {
        i=5;
      }
    }
  }
  if(i==5)
  {
    parameter=num1+num2+num3;
    printf("Parameter = %.1f",
  parameter);
  }
  else
  {
    printf("Triangle is not\
valid.");
  }
  getchar();
}