Triangulo

#include <iostream>
#include <cmath>
using namespace std;

class triangulo{
    public:
    triangulo(double base,double altura,double cateto);
    double area();
    double perimetro();
    private:
    double base,altura,cateto;
};
//-----------------------------------------------------------------------------------------------
    triangulo::triangulo(double base,double altura,double cateto):base(base),altura(altura),cateto(cateto){}
    double triangulo::area(){return (base*altura/2);}
    double triangulo::perimetro(){return base+2*cateto;}
//-----------------------------------------------------------------------------------------------
//-----------------------------------------------------------------------------------------------
int main (){
    triangulo a (10,42,43.17);//creo un triangulo de base 10  altura 42 cateto 43.17
    cout <<"area es "<<a.area()<<endl;
    cout <<"su perimetro "<<a.perimetro()<<endl;
    return 0;
}