find the area and perimeter of this triangle?

[srlcay47]

#include <iostream>
#include <cmath>
#include <string>
using namespace std;
#include "ccc_win.h"

double perimeter(Triangle t);
double area(Triangle t);


class Triangle
{
public:
Triangle();
Triangle(Point corner1, Point corner2, Point corner3);
void plot() const;
void move( double dx, double dy );

private:
Point corner1;
Point corner2;
Point corner3;
};

Triangle::Triangle( Point p1, Point p2, Point p3 )
{
corner1 = p1;
corner2 = p2;
corner3 = p3;
}

void Triangle::plot() const
{
Line l1 = Line(corner1, corner2);
Line l2 = Line(corner1, corner3);
Line l3 = Line(corner2, corner3);

cwin << l1 << l2 << l3;
}

void Triangle::move(double dx, double dy)
{
corner1.move(dx, dy);
corner2.move(dx, dy);
corner3.move(dx, dy);
}

int ccc_win_main()
{
Point p1 = Point(0,0);
Point p2 = Point(-5, -5);
Point p3 = Point(-2, 4);

cwin << p1 << p2 << p3;

Triangle r1 = Triangle(p1, p2, p3);

r1.plot();

r1.move( -2, -3);

r1.plot();




return 0;
}


}
/* Computes the perimeter of Circle C
@param c the circle object
@return the perimeter
*/
double perimeter(Triangle t)
{

double perim = 2 * M_PI * r;
return perim;
}
/* Computes the area of Circle C
@param c the circle object
@return the area
*/
double area(Triangle t)
{

double are =
return are;
}

[tummychow]

So, got a question?