Calculate the circumferential length of a circle when the diameter of the circle is

a) 1.0 cm.



Answer: The length of the circumference is cm.

b) 3.0 cm.



Answer: The length of the circumference is cm.

c) 5.1 cm.



Answer: The length of the circumference is cm.

d) 6.7 cm.



Answer: The length of the circumference is cm.