Answer:
A circle can be drawn using compasses. All the points on the
circle are the same distance, called the radius, from the
center. A line joining two points on a circle is called a
chord. When the line passes through the center the chord is
a diameter.
Circles
are simple shapes of Euclidean geometry consisting of those
points in a plane which are at a constant distance, called
the radius, from a fixed point, called the center. Circles
are simple closed curves which divide the plane into an interior
and an exterior. The circumference of a circle is the perimeter
of the circle, and the interior of the circle is called a
disk. An arc is any connected part of a circle.
