A segment between two points on a circle is
A line segment that intersects with or joins two points on a circle is called a chord.
chord
A chord
A chord
It is the circle's diameter
a chord of the circle
Only round the perimeter of the circle (not across its interior) because a segment is a part of a line or curve between two points.
a chord.
It is a chord.
a chord
A chord is a line which connects two points which lie on a circle.