Answer:
34
Explanation:
The angle x^2 + (x+12) + 100 will need to equal 180.
Therefore, set your formula
180 = 100+(x+12)+x
180 = 100+2x+12
180-100-12=2x
68=2x
68/2 = x
34 = x
9.5m questions
12.2m answers