Answer:
21.20 in³
Step-by-step explanation:
As a review: the formula for the volume of a cylinder is V = πr²h, where r is the radius and h is the height. Since diameter = 2(radius), d = 2r.
Here, d = 2r = 3 in, so r = (3/2) in, and thus r² = (3/2)² in², or r² = (9/4) in².
Subbing these values (r² = [9/4] in² and h = 3 in) into the equation for volume (above), we get:
V = 3.14(9/4)(in²)(3 in) = 21.20 in³
