Answer and Explanation:
As the function contain Turtle Object, and coordinates of the circle center points and radius.
def draw Circle (turtle obj, center-point, radius):
>>>Circumference at 120 distance
circumference = 2 * 3.14 * (radius/120)
>>>call the turtle method
turtle.up()
>>>as the coordinates point x and y is at -1 position.
(x,y) = center point[-1]
turtle.turn
>>>>as turtle moving given distance of 120
turtle.moving(120)
turtle.down()
turtle=Turtle()
drawCircle(turtle, [(20,20)], 20)