What is error in this code. ?

Question

#include <iostream>

using namespace std;

int main()
{
float s1,s2,s3,s,area;
cout<<"enter the length of three sides:";
cin>>s1>>s2>>s3;
s=(s1+s2+s3)/2;
area = sqrt(s*(s-s1)*(s-s2)*(s-s3));
cout<<"Area="<<area<<endl;
return 0;
}

Answer 1

add this to the top as it's needed for sqrt function:

#include <math.h>

Answer 2

You should use <cmath> instead of <math.h>

Answer 3

Maybe it would help to do the c++ lessons Collins

Answer 4

I don't understand what all these is all about. can someone help Me?. I want to learn C++ and I have zero knowledge of it.

Answer 5

ok