C Program to Square Root of Number

#include<stdio.h>
int main()
{
    double num,root;
    printf("Enter Number for Square root: ");
    scanf("%lf",&num);

    root = sqrt(num);

    printf("Square root of %.2lf = %.2lf", num, root);

    return 0;
}

Output

Enter Number for Square root: 256
Square root of 256.00 = 16.00