Find x. Assume that segments that appear tangent are tangent.

Answer:
x = 5.
Step-by-step explanation:
Finding lengths of the unmarked sides:
PQ = PW = 3
QR = 2
VW = 6
ST = 9 ( because in each case lines drawn from a point outside a circle as tangents to the circle are congruent)
S0 x = PQ + QR
= 3 + 2
= 5.