Who can check my code?

//My program working but i don't know, i did it in correct way or not.?

Code:

---

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>


struct triagle
{
    float point1;
    float point2;
    float point3;
};


float tr_perimetr(float x,float y,float z)
{ 
    float perimetr;
    perimetr = x+y+z;
   
    return perimetr;
}




int main()
{ 
    srand(time(NULL));
    struct triagle perimetr;
    int num;
    perimetr.point1 = (rand()/(float)RAND_MAX)*(10.0+10.0)-10.0;
    perimetr.point2 = (rand()/(float)RAND_MAX)*(10.0+10.0)-10.0;
    perimetr.point3 = (rand()/(float)RAND_MAX)*(10.0+10.0)-10.0;
    printf("Perimetr of triangle with edges of %.1f\t%.1f and %.1f = %.1f",perimetr.point1,perimetr.point2,perimetr.point3,tr_perimetr(perimetr.point1,perimetr.point2,perimetr.point3));
   
   
    return 0;
}

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Well, "triangle" has an 'n' in it.
And you aren't storing "points" but side lengths.
Also, the exercise says to pass a triangle to the function, not it's separate side lengths.

An point is normally considered two values often called x and y values.

Tim S.

john.c and stahta01 have a point (sorry didn't resist the pun).

You are dealing with triangle SIDES, not vertices. And choosing 3 random values between -10 and 10:

Code:

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rand()/(float)RAND_MAX -> Will be a value between 0 and 1.
(rand() / (float)RAND_MAX) * 20 -> Will be a value between 0 and 20.
(rand() / (float)RAND_MAX) * 20 - 10 -> Will be a value between -10 and 10

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Not all choosen values are valid as "lengths"...