Answer:
A. 12
Step-by-step explanation:
TU and CV are two chords of the circle that intersects at point w.
Thus,
[tex] x*3 = 9*4 [/tex] (two intersecting chords theorem)
Solve for x
[tex] 3x = 36 [/tex]
Divide both sides by 3
[tex] \frac{3x}{3} = \frac{36}{3} [/tex]
[tex] x = 12 [/tex]
