Respuesta :

Answer:

D 111

Step-by-step explanation:

Answer:

D. [tex]111\degree [/tex]

Step-by-step explanation:

By tangent secant theorem:

[tex] m\angle TSU=\frac{1}{2}(360\degree - 138\degree) [/tex]

[tex] m\angle TSU=\frac{1}{2}\times 222\degree [/tex]

[tex] m\angle TSU=111\degree [/tex]