Not sure about a lie, but such a line is called the diameter.
A geometrical object that is straight, infinitely long and infinitely thin.
It is a geometrical construction
a parallelogram does not have a line of symmery
A line, "living" in N-dimensional space, where N is the number of variables.
Circles
A straight line perhaps
It is the circle's diameter
A geometrical curve is defined as any set of points. Therefore, counter-intuitively, a straight line is also a geometrical curve.
because they can fold and line up like a heart
Not sure about a lie, but such a line is called the diameter.
A geometrical object that is straight, infinitely long and infinitely thin.
It is a geometrical construction
a parallelogram does not have a line of symmery
A mirror image of an object is said to have a line of symmetry
A line, "living" in N-dimensional space, where N is the number of variables.
The word "circumscribe" means to draw a line around, to limit, or confine, or, in a more mathematical sense, to draw one geometrical figure around a second geometrical figure so that one surrounds, but does not touch, the other.