Step-by-step explanation:
Since arc abc is an intercepted arc, then 3x-1.5=2(3x+9)
Now solve the equation
Answer:
mAC = 48
<B = 1/2(mAC)
so 2(<B) = mAC
Plug in
2(3x - 15) = 3x + 9
6x - 30 = 3x + 9
3x = 39
x = 13
mAC = 3(13) + 9
mAC = 39 + 9
