The correct answer is C
Explanation
The volume of a cylinder with radius r and height h is equal to
. Therefore,
and
, so the radius of the cylinder is 3. The circumference of a circle with radius r is equal to
; therefore, the circumference of the base is equal to
.

Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
A right circular cylinder has height 6 and volume
. What is the circumference of its base?
(A) 
(B) 
(C) 
(D) 
(E) 