Fix checks

Triangle.cpp

@@ -60,10 +60,7 @@ void Triangle::set_c(const Point& point_c) {
 }
 
 Triangle::Triangle() = default ;
-Triangle::Triangle(const Triangle &other): a(other.a), b(other.b), c(other.c) {
- //just to bypass =default suggestion/warning
- a=other.a;
-}
+Triangle::Triangle(const Triangle &other) = default;
 
 bool Triangle::does_not_intersect_triangle(const Triangle& other) const{
  Line other_ab= Line(other.a,other.b);
@@ -89,14 +86,7 @@ std::ostream &operator<<(std::ostream &os, const Triangle &triangle) {
  return os;
 }
 
-Triangle &Triangle::operator=(const Triangle &other) {
- a=other.a;
- b=other.b;
- c=other.c;
- //to avoid warning
- c=other.c;
- return *this;
-}
+Triangle &Triangle::operator=(const Triangle &other) = default;
 
 Triangle::~Triangle() = default;