Question

X
y
1089
400
W
2
x = [?]°

Answer 1

x = 20°

Explanation:

An inscribed angle is half the measure of the arc it subtends. Angle x intersects an arc of 40°, so its measure is ...

x = 40°/2 = 20°

_____

Additional comment

The other angle measures are similarly found.

x = z = 20°

y = w = 54°