第十五实验报告1

class Triangle
{
public:
Triangle(){a = 1; b = 1; c = 1;}
Triangle(double x, double y, double z) {a = x; b = y; c = z;}
double area();
double permeter();
private:
double a, b, c;
};

#include "stdafx.h"
#include <iostream>
#include <cmath>
#include "MyTriangle.h"
double Triangle::area()
{
double s = ( a + b + c)/2;
return sqrt(s * (s - a) * (s - b) * (s - c));
}
double Triangle::permeter()
{
return (a + b + c);
}