i need help findind m angle 12 =?
m angle 9 = 80° and m angle 5= 68°

Answer:
I think the answer is 12 = 100
Step-by-step explanation:
since 9 = 80 and that is the same for 11, if you do 180 - 80 = 100 which would be the answer for 10 and 12. Thus 12 = 100 based on the info given.
Hope this helps :)