For this case we have that by definition, the perimeter of a circle is given by:

Where:
r: It is the radius of the circle.
According to the figure, it is observed that the radius of the circle is 2. Then:

Let's remember that we have a quarter circle:

We round and we have that the correct option is 
Answer:
Option A
The attached figure is the image that completes the question
I think it's 9 cause 4x4 equals 16 and 144/16 equals 9
Answer:
The answer is B
Step-by-step explanation: