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1 files changed, 21 insertions, 0 deletions
| -rw-r--r-- | Polymorphism/Triangle.hpp | 21 |
diff --git a/Polymorphism/Triangle.hpp b/Polymorphism/Triangle.hpp new file mode 100644 index 0000000..8372464 --- /dev/null +++ b/Polymorphism/Triangle.hpp @@ -0,0 +1,21 @@ +public:
+ Triangle(int x1, int y1, int x2, int y2, int x3, int y3) :Figure(3)
+ {
+ setPoint(0, x1, y1);
+ setPoint(1, x2, y2);
+ setPoint(2, x3, y3);
+ }
+ double getSide(int side)
+ {
+ return getPoint(side).getDistTo(getPoint((side+1)%3));
+ }
+ double getPer()
+ {
+ return getSide(0)+getSide(1)+getSide(2);
+ }
+ double getArea()
+ {
+ double halfP = getPer()/2;
+ return sqrt(halfP * (halfP-getSide(0))*(halfP-getSide(1))*(halfP-getSide(2)));
+ }
+};
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