Question

What is the diameter of a circle with a circumference of 37.68 inches? Use 3.14 for pi.

Answer 1

Answer: The diameter is 12.

Step-by-step explanation:

We know that the circumference can be found by the following formula:

C= Dπ  or C= 2rπ       I recommend using the one with the variable "D" , it is                   easier

Because we know that the circumference is 37.68 inches, we can substitute that for the variable "C" and solve for D, the diameter.

(37.68) = Dπ Divide by 3.14, as the instructions in this question specify to do so.

37.68/3.14 = D π/ 3.14

D = 12  The diameter equals twelve.