Answer:

Step-by-step explanation:
From the question we are told that
Width of circular path 
Inner Diameter 
Outer diameter
(inner diameter + 2 circular path width)

Generally the equation for inner circumference of the circle
is mathematically given by



Generally the equation for outer circumference of the circle
is mathematically given by



Generally the difference in length of the two circumference
is mathematically given by



Answer: 43.07
Step-by-step explanation:
What are you even asking us
Answer:
a=14
Step-by-step explanation:
-a+28=14
So -a=-14
so a=14
Same, i need help with geometry too :(