I believe it's 3 months because 12 divided by 4 is 3.
Step-by-step explanation:
Let x represent theta.

Using the angle addition trig formula,



Multiply one side at a time
Replace theta with x , the answer is

2. Convert 30 degrees into radian

Using tangent formula,


Tan if pi/6 is sqr root of 3/3

Since my phone about to die if you later simplify that,
you'll get

Replace theta with X.
Circumference of a circle = 2πr
So,

Hello! I got the answer no solution, which the symbol for that is Ø