Triangle - Area and L

#include <iostream>
#include <math.h>

using namespace std;


class Triangle{
private:
    int a;
    int b;
    int c;
public:
    Triangle(int a,int b,int c)
    {
    this->a=a;
    this->b=b;
    this->c=c;
    }
    int L(){
    return
    a+b+c;
    }
    int P(){
    return sqrt(((a+b+c)/2)*(((a+b+c)/2)-a)*(((a+b+c)/2)-b)*(((a+b+c)/2)-c));
    }

};

int main()
{

    float a,b,c;
    cin>> a >> b >> c;
    Triangle object(a,b,c);
    cout<< "The area of the triangle is:" << object.P() << endl;
    cout<< "The perimeter of the triangle is:" << object.L() << endl;


    return 0;
}