How can I write a code in C that checks if three values can represent the lenghts of a triangle?

Question

I know I have to use the triangle inequality and i suppose I need to use the if-else statements for this. But I don't know how...

Answer 1

On the other hand, I think you must check all situations:
a + b > c
a + c > b
b + c > a

This translates in your program as:
if (((a+b) > c) && ((a+c) > b) && ((b+c) > a)) {....}

Answer 2

Elena Eremia Your if condition is wrong. Here should be

if((a + b) > c) {

}

Answer 3

you have to check for all 3 cases,meaning-
a+b>c
b+c>a
a+c>b

Answer 4

Yes! That' s what I wanted to ask ! Thank you!☺️

Answer 5

Have you tried? At least...

Answer 6

Here is what I've tried: https://www.onlinegdb.com/edit/rku_wwAm8

Answer 7

I cannot access that link, I guess only you can.
Copy paste it here or in SL playground and link it here.

Answer 8

#include <stdio.h>

int main()
{
printf("Checking if a, b and c can be the sides of a triangle\n");
int a, b, c;
printf("a=");
scanf("%i", &a);
printf("b=");
scanf("%i", &b);
printf("c=");
scanf("%i", &c);
if("a+b>c ", &a,b,c )
{ printf("a, b and c are forming a triangle");}
else { printf("a, b and c are not forming a triangle");}

Answer 9

Oh! Yes! Thanks a lot!😁

Answer 10

Yes, I've tried but it doesn't work.

Answer 11

Post your try here, and we will try to help you.