lab 1 ex 12

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

int main()
{
    float dlina, area;
    printf("Enter dlina RAVNOSTORONNEGO triangle ");
    scanf("%f", &dlina);
    printf("Dlina storoni is %f\n", dlina);
    area = (sqrt(3) / 4) * (dlina* dlina);
    printf("Ploshad' is %f\n", area);

    return 0;
}