As per given by the question.
There are given that a circle..
Now,
From the circle,
1. Name the circle.
The circle R is the name of the circle.
2.Name of the radius.
Radius- the distance from the centre of the circle to the outside edge.
So,
The radius of the circle is RT.
Now,
3. Name of the chord that is not a diameter.
Chord- A straight line that joints two point on the curve.
So,
The chord of the circle is UV.