Given the following class declarations of Rectangle, Triangle, andPyramid, write

Question

Given the following class declarations of Rectangle, Triangle, andPyramid, write the member function Pyramid::getArea () that returnsthe surface area of the pyramid. Use Triangle::getArea () andRectangle::getArea () as well.

class Triangle
{
      private:
                  float base, height;

      public:
                 //Constructors
                 Triangle (): base (0), height (0) {}
                 Triangle (float b, float h): base (b), height (h) {}
                 Triangle (const Rectangle &other);

                  //Accessors
                  float getBase () const;
                  float getHeight () const;
                  float getArea () const;

                  //Mutators
                  void setBase (float);
                  void setHeight (float);
};


class Pyramid
{
      private:
                  Rectangle floor;
                  Triangle faceA;
                  Triangle faceB;

      public:
                 //Constructors
                 Pyramid () {}
                 Pyramid (Rectangle f, Triangle a, Triangle b): floor (f), faceA(a), faceB (b) {}
                 Pyramid (const Pyramid &other);

                 //Accessors
                 Rectangle getFloor () const;
                 Triangle getFaceA () const;
                 Triangle getFaceB () const;
                 float getArea () const;

                 //Mutators
                 void setFloor (Rectangle);
                 void setFaceA (Triangle);
                 void setFaceB (Triangle);
};


class Rectangle
{
      private:
                   float length, width;

      public:
                  //Constructors
                  Rectangle (): length (0), width (0) {}
                  Rectangle (float l, float w): length (l), width (w) {}
                  Rectangle (const Rectangle &other);

                  //Accessors
                  float getLength () const;
                  float getWidth () const;
                  float getArea () const;

                  //Mutators
                  void setLength (float);
                  void setWidth (float);
};

If anyone can please help, it would be muchappreciated! thanks !

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