The answer is 1
Hope that helps!
        
                    
             
        
        
        
Answer:
6.3
Step-by-step explanation:
Arc length is circumference
C = 2 * pi *r
We are finding a fraction of the total arc length
A circle is 360 degrees
45 degrees  / 360 degrees = 1/8
Find the total arc length and multiply by the fraction of the circle
arc length = 2 * pi * r * 1/8
                   = 2 * 3.14 * 8 * 1/8
                   =6.28
Rounding to the nearest tenth
 6.3
 
        
                    
             
        
        
        
16 ÷ 12 = 1.33333.....
The answer lies in between the number 1 and 2.