Question 346776
x+x/2+12=180
(2x+x)/2=180-12
3x/2=168 cross multiply.
3x=2*168
3x=336
x=336/3
x=112 answer for the larger angle.
112/2+12=56+12=68 answwer for the smaller angle.
Proof:
112+68=180
180=180