(2)
we know that
when two lines do not intersect , they can be parallel lines or skew lines
so,
Lines that do not intersect are called parallel or skew lines
(4)
we know that
A circle is the set of all points in a plane that are equidistant from a given point
so,
The set of points in a plane that are equidistant from a given point form a circle
(8)
Moving a figure around a fixed point in the plane is called making a image of the figure
(3)
A translation of the plane is a transformation which shifts all the points in a plane figure, without altering the shape of the figure
(6)
All the points on a line that are between two given points form a line segment