Question

Name a chord in the illustration below.
circle A with diameters RT and US; radius AV is perpendicular to diameter RT

Answer 1

A chord is a line segment in which both end points lie on the circle (including diameters). In your example there are many chords possible. Pick any two points on the circle and the line connecting them is a chord.

Some examples:
VS
RU
VT
VU

There are others.

Answer 2

got it! thanks for explain it to m! :)

Answer 3

No problem. You're welcome.