Update Triangle.hpp

1 files changed, 4 insertions, 0 deletions

diff --git a/Polymorphism/Figures/Triangle.hpp b/Polymorphism/Figures/Triangle.hpp
index a6599bf..b933060 100644
--- a/Polymorphism/Figures/Triangle.hpp
+++ b/Polymorphism/Figures/Triangle.hpp
@@ -1,3 +1,6 @@
+#include "Figure.hpp"

+class Triangle

+{

 public:

 	Triangle(int x1, int y1, int x2, int y2, int x3, int y3) :Figure(3)

 	{

@@ -15,6 +18,7 @@ public:
 	}

 	double getArea()

 	{

+	    //Херонова формула

 	   double halfP = getPer()/2; 

 	   return sqrt(halfP * (halfP-getSide(0))*(halfP-getSide(1))*(halfP-getSide(2)));

 	}