Circumference.
Circumference
It is the circle's circumference
the circumference
circumference
That is called an "arc".
Circumference.
Circumference
the radius is half of the diameter
It is the circle's circumference
circumference
the circumference
circumference
circumference
A circle.
Its name shall be called "circle".
That is called an "arc".
It is the name given to the straight line from the centre of a circle to its circumference when that distance is 28 cm.