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//we assume that before a object is initilized we assume it is invalid, and when it is initalized it is valid. > 0 c > 0 and also triangle inequality a + b > c a + c > b. B. b would not work and fail because no member like a struct, but can have member functions within it don"t need to pass the pointer to the member. Constructors that class is called on the object to initialize it. Always when a class type object is created a constructor for. Tri t2 int x = 3 is the same as int x(3); you want provide a constructor for the kind of initilazation class triangle{ private: int a; public: Triangle(int a_in) { //assignment a = a_in; it receives arguments provided by initilizer. //same name as the class, and takes parameters it"s initilizer and not assigned special syntax for constructors to make sure class triangle{ private: int a; intilization public:

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