Answer:
the region of the circle in polar coordinate can be expressed as:
Step-by-step explanation:
Given that:

This implies that :

center (5.5, 0) and radius = 5.5
The relation between the cartesian coordinates (x,y) and the polar coordinates (r, θ) is as follows:
x = rcosθ
y = rsinθ
Thus, 



Thus, the angle θ runs between
to
Therefore, the region of the circle in polar coordinate can be expressed as: