Answer:
x = 6.
QU = 9.5.
Explanation:
RVZW is a kite
as ZU = 12 and ZV = 12 and V<RVZ and < RUZ are both right angles.
Therefore RU = RV.
As the radii ZW and ZY are at right angles to the chords RS and RQ they cut them in half so RS = RQ so:
3x + 1 = 19
3x = 18
x = 6.
QU = 1/2 * 19
= 9.5