If a circle has a diameter of 12 cm, then what is the circmference of the circle?

Question

24 pied, 12 pied, 6 pied, or 36 pied?

I can't make the pie sign... :P

Answer 1

12 pied

Answer 2

The circumference of a circle is found using the following formula:

C = 2(pi)r

C is circumference

r is radius

Your circle has a diameter of 12cm, and the radius is half the diameter, so r = 6cm.

Putting into formula...

C = (2)(pi)(6)

C = (12)(pi)

The circumference therefore is equal to 12 pi

Hope this helps ;)

Answer 3

its 12pi

Answer 4

Circumference is 2*pi*diameter so

diameter = circumference divided by 2*pi, which is about 6,28 (I used pi = 3.14)

Answer 5

formula is

circumference of circle=pie*r

therefore ans is 6pied