Answer:
Slinky Toy
Step-by-step explanation:
Parabola ⇒ A parabola is a plane curve with a U shape which is mirror-symmetrical. A parabola fits different superficial descriptions and can be proved to define each curves.
The features it had was semi-symmetric features and that is because of when a slinky toy is stretched and placed on the top of a rigid surface in such a way that both of its ends properly touch the base of the surface, one can easily observe the parabolic shape formed by it.
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