Find the circumference of the circle shown, correct to two decimal places.
If the radius of a circle is equal to $27$27 cm, find its circumference correct to one decimal place.
If the diameter of a circle is equal to $38$38 cm, find its circumference correct to one decimal place.
What is the radius $r$r of a circle with the circumference $C=14$C=14 cm?
Round your answer to two decimal places.