Respuesta :

Answer:

20°

Step-by-step explanation:

By inscribed angle theorem:

(Measure of inscribed angle is half of the measure of intercepted arc. )

[tex]z = \frac{1}{2} \times 40 \degree = 20 \degree[/tex]

Answer:

z = 20

Step-by-step explanation:

w = 54

x = 20

y = 54