9514 1404 393
Answer:
x = 4
Step-by-step explanation:
The external angle (12°) is half the difference of the intercepted arcs. The two intercepted arcs have a total measure of ...
180° -148° = 32°
and their difference is 2×12° = 24°
So, we have ...
(32° -x°) -x° = 24°
32° -24° = 2x°
x° = 4°
