#include "Rectangle.h" Rectangle::Rectangle(int x1, int y1, int x3, int y3) : Shape(4) { setPoint(0, x1, y1); setPoint(1, x1, y3); setPoint(2, x3, y3); setPoint(3, x3, y1); } double Rectangle::getArea() const { Shape::point p0 = getPointAtIndex(0); Shape::point p1 = getPointAtIndex(1); Shape::point p3 = getPointAtIndex(3); return p0.getDist(p1) * p0.getDist(p3); } double Rectangle::getPer() const { Shape::point p0 = getPointAtIndex(0); Shape::point p1 = getPointAtIndex(1); Shape::point p3 = getPointAtIndex(3); return 2*(p0.getDist(p1) + p0.getDist(p3)); }