3 lati

#include <stdio.h>
#include <stdlib.h>
#include  <math.h>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char *argv[]) {
    int a,b,c,p,o;
    printf("dammi 3 lati");
    scanf("%d",&a);
    printf("dammi 3 lati");
    scanf("%d",&b);
    printf("dammi 3 lati");
    scanf("%d",&c);

    if(a==b&&b==c&&a==c)
    {
        p=a+b+c;
        o=sqrt(a);
        printf("perimetro vale %d",a);
        printf("l area vale %d",b);
    }
    else
    {
    printf("non e un triangolo equilatero");
    }
    return 0;
}